It is hard to keep fragile glass intact for decades. Fenton rose crest cornucopia candle holder 2. From Art Deco to 1970s Contemporary, we tried to list as many lamp manufacturers as we could find. They moved across the Ohio River to Williamstown, West Virginia, and built a . The molten glass is placed into forms and then pressed to get the right shape and emboss the surface with a pattern. Tiffany lamps are famous for the vibrant colors and varied textures used in the glass design. Instead of slag, they mixed purple glass with a white-colored glass that did not contain any iron slag. Topped by an Art Deco style marbled yellow art glass shade. Discerning Victorian consumers resisted purchasing marbleized glass in some cases and preferred more decorative elements in crystal. To help us improve user experience, we use Matomo to analyse how visitors interact with the website. Vintage Slag Glass Value (Identification & Price Guides) - Noname Antiques Explore other items from ourAntiques & Collectibles Price Guide. 10 Easy Steps on How to Identify Slag Glass Step 1: Look for a Marbled or Swirled Pattern One of the easiest ways to identify slag glass is by its marbled or swirled pattern. They may have additional insight or knowledge on identifying slag glass. How to identify a slag glass lamp. Outstanding glass and color. There are several things to keep in mind when looking to identify whether something is slag glass or not. Slag glass is often cut and shaped by hand, leading to irregularities in shape. Step 3. But in case you are looking for a list of vintage lamp manufactures from the mid-1800s to the present day, we've provided that below. Slag glass pottery and ornaments are perhaps one of the best examples of this, as they are two of the most common types of slag glass found in modern homes. True slag glass was originally produced in England during the last quarter of the 19th century when, simply put, it is believed slag from iron-smelting was added to molten glass to achieve a marbling effect in a variety of colors. Sotheby's, New York, NY (December 2017) Estimate: $300,000 - $500,000. Exceptional lamp. Look for age-related wear or markings on accompanying hardware, such as lamps or furniture. If they look and feel smooth and consistent, it was likely machine painted. How to Identify Slag Glass | 10 Easy Steps (2023) The strict definition of slag glass means that it has powdered silicate slag from iron smelting mixed into the glass to create streaks. Sowerby in Gateshead, England is believed to be the first glass foundry to create slag glass. At first glance the two can appear similar, but a close examination of the glass opacity will often be enough to differentiate one from the other. In addition, slag glass panels were used in lamps, jewelry boxes, and other collectibles. If the base color is brown, purple, blue, or green theres a decent chance that it is a vintage make. One of the most common applications of vintage slag glass is in lighting. McCrory and Kresge also were major customers. Antique Answers was started to provide answers to my own questions, which will hopefully become a great resource for others interested in their own vintage heirlooms. Slag Glass Identification and Valuation - Antique Answers This antique glass is known by other names including: Slag glass is created by using pulverized silicate slag, an ingredient that forms on the top of molten iron as it cools down. Delivery from Downers Grove, IL 7-14 days Edit my Location. Prof. Dr. Ralf Busch | Faculty of Natural Sciences and Technology Co. 240, rewired, new AMERICAN EARLY 20TH CENTURY SLAG GLASS LAMP With a 16 inch slag Nice, original 8 panel caramel slag glass lamp, circa 1920-30, in 384. Egyptian patterns were also common due to the interest in the tomb of King Tut in the early 1920s. At first they painted glass blanks from other glass makers, but started making their own glass when they became unable to buy the materials they needed. This common characteristic of slag glass can add to its unique appearance. Slag glass was first created in England in the 1880s as an opaque brown with white streaks from iron slag. If you're a collector of antique lighting, you've likely come across slag glass lamps. eBay (258) Magazine. 2002-2023 LoveToKnow Media. Assuming your lamp isn't marked, then we have to move onto other steps to figure out if it is authentic. Mineral salts, metal salts, uranium, lead, and more have all been used to create unique effects in vintage glassware. . Fenton, Mosser, Boyd Glass, and Summit are some of the common, modern, U.S. manufacturers of slag glass. Original 1910-1920's slag glass lamp, shows one cracked glass REVERE Copper and slag glass lamp, its faceted shade with green LAMP SHADE - Leaded slag glass lamp shade, unsigned, with TABLE LAMP - A four panel, dark green slag glass lamp with VINTAGE SLAG GLASS LAMP All original wiring, Circa 1920s, Size: 22 Slag Glass Lamp, figural spelter base with couple. If the piece is pink, orange, or red it is not vintage. Slag is the byproduct of steel production. The original slag glass is brown with creamy streaks, a similar pattern to how your cup of coffee looks when you first pour in milk or creamer. Slag glass lamps are one of the most sought-after items made of slag glass. The number of broken pieces. Image 2: Tiffany Studios Patinated-Bronze and Leaded Favrile Glass Poinsettia Floor Lamp. Become a national Fenton club member Fenton glassware prices 1. 1930s Traditional Slag Glass Lamp | Chairish Make an offer . AMERICAN EARLY 20TH CENTURY SLAG GLASS LAMP, Nice, original 8 panel caramel slag glass, 384. France, Late 19th Century. Slag glass is often cut and shaped by hand, leading to irregularities in shape and uneven edges. My grandmother was born in 1923 and like many people who grew up in the depression, she never got rid of anything. 73- Important Duffner and Kimberly leaded lamp. [more like this] A pair of figural spelter oil lamps, with Identifying Silhouette Slag Glass Lamp | All About Antiques Malachite stones have wavy striping in a green-tinged milky white on top of a darker green. These colors are created during the manufacturing process and can vary greatly from piece to piece. Despite its rarity, you can still find slag glass items in modern homes. Original Tiffany Lamps employed this metallic finish on the resin base. Identification Tips & History Highlights, One of the most unusual types of antique glass that collectors can investigate, Vaseline glass is absolutely fascinating due to its color, history, and radioactive components. Fenton Art Glass Company - Wikipedia Youll rarely find marbleized glass dating earlier than 1860, even though the technology existed before this point.2. See also Antique Gone with the Wind Lamp for Sale: A Guide for Buyers and Collectors. Slag glass, also known as marble glass or Cinderella glass, is an opaque, swirl-patterned glass. The most popular colors of slag glass tend to be shades of green and blue, but they can also be found in red, yellow, lavender, brown, and even black. Accept Read More, We hand-pick antiques for our readers and may, Popular Glass of the 19th and 20th Centuries: A Collectors Guide (Millers Collectors Guides), Most Popular Vintage Corning Ware Patterns (and Price Ranges), Antique Price Guide with Pictures: A Look at Antiques Worth Money, The Best Antique Price Guide Books for Appraising, Blue Willow China: All About This Timeless Classic, Flexible Flyer Sleds: A Closer Look at History, Value, and Quality, What Is Carnival Glass? Related Posts: Cranberry Glass Decanter Q: This cranberry glass decanter belonged to my mother or; Jefferson Glass Co. Lamp Q: I have a Jefferson lamp with the numbers "2367"; Slag Glass Lamp Q: I'm looking to find some info on this slag; Tiffany Style Lamp Q: I recently acquired this "Tiffany" style lamp. Electrified with hanging chain, Arts and Crafts style hammered brass andArts and Crafts style hammered brass and slag glass lamp unmarked early 20th century; with green slag glass panels and reticulated shade square base 26 Then, gently wash the piece using warm water and mild soap. The pieces produced are of a very similar style and quality, and it can be difficult to identify exactly where a vintage piece was originally produced. Ludwigskirche. Slag glass of other colors is unlikely to be an antique. The slag floats to the top, cools, and is collected to mix and make slag glass. But you Handling Antique Glass Antique glass should be handled as if it has been; Glass Repair Repairs to cut glass can be seen with a black; Vintage & New Glass Paperweights Glass paperweights . Art nouveau floral filigree frame shade. (See below for more info on marks.) This is due to the rarity of the color. The history of slag glass goes back to the late 1890s in Gateshead in the northeast of England. Vintage Swag Green Slag with Amber Glass Drop Light, Pendant Hanging Lamp . The marbled effect is gorgeous on its own, but shining light through a complicated and colorful design is even more stunning. Lamp measures 5 1/2'' h. x 11'' x 5'', globe measures. The company, based in Jeannette, Pennsylvania, rebranded in 1898 and took on the name Jeannette Glassware. The Historical Museum Saar is the museum on Saarland's history. Its worth keeping an eye out for unique slag glass pieces in unexpected places! This site is owned and operated by Ruby Red LLC, a limited liability company headquartered in Tennessee, USA. Companies continued to make slag glass items well into the mid-20th century. Antique 1908 Bradely & Hubbard Slag Glass Lamp Signed B&H Arts & Crafts $425.00 $32.52 shipping or Best Offer SPONSORED Large Bradley Hubbard Colorful Slag Glass Shade & Base, Arts & Crafts, Handel Er $1,650.00 $95.00 shipping or Best Offer 14 watching SPONSORED Antique Brass Oil Kerosene Font B&H Bradley & Hubbard Center Draft Banquet GWTW $125.00 Signed slag glass tends to be worth more than unmarked slag glass. Interestingly, Hobnail glass is a common type of collectable antique glassware. EMPIRE LAMP CO. SLAG GLASS LAMP bronze base marked 'Empire Lamp M.L. What Is Slag Glass? Antique Works and Values | LoveToKnow A product that is unwanted during the smelting process, and would otherwise be wasted, is put to good use in the glass business. Slag glass antique lamps sell Between $200 and $2,000, and most of the value is in the light itself. Slag glass has been used since the late 19th century and became popular during the Art Nouveau period in the early 20th century. Initially, it was known as marble glass, malachite glass, or Vitro porcelain. Our up-to-date information will give you an accurate understanding of your items' worth. Antique Purple and White Slag Glass Cake Stand, Antique EF Industries Green Slag Glass Table Lamp. Look for any imperfections or bubbles in the glass, which can indicate it is not true slag glass. . -Cracked, repaired, or otherwise damaged shades have virtually no value. Handel Lamps - oldlampvalues The marble should never be streaky and it should blend well with the color of the glass. Some stained glass pieces may appear very similar to all of the small pieces in beautiful patterns. French Art Nouveau "La Serenade" Figural w/ Slag Glass Shade . List of Vintage Lamp Manufacturers Advertisement About Paul Phipps Restoring bent slag glass antique lamps with museum quality SINCE 1978. If possible, consult a knowledgeable collector or visit an antique store to verify authenticity. Cavo is the author of Love Immortal: Antique Photographs and Stories of Dogs and Their People. Its no surprise that this style is most typically referred to as marble glass. 2022 HEIRLOOMS AT HOME & AGELESS HEIRLOOMS. Bradley And Hubbard Lamp - 31 For Sale on 1stDibs Dr. Anthony J. Cavo is an honors graduate of the Asheford Institute of Antiques and a graduate of Reisch College of Auctioneering. The first test in evaluating shades is to closely inspect the quality of the leading, the soldered seams holding the pieces of glass together. Some handmade collector marbles are small works of art that can command big prices. How To Identify Slag Glass by Dr. Lori - YouTube Without the need for the residue product of iron ore, the manufacture of mosaic glass exploded in Europe and the US and its popularity has not waned since. Gallery of Antique Aladdin Lamps - From 1 to 23A Slag Glass information from the Glass Encyclopedia One of the best ways to check if your slag glass is real is to look for the names and marks of manufacturers. Two glassmakers in Pennsylvania, Harry Northwood and Thomas Dugan, were the first to imitate slag glass by mixing two colors of glass together and forgoing the actual slag in 1902. -All mosaic and slag glass "Handels" should be viewed with some skepticism. As technology and manufacturing changed over time, new colors have been introduced to the slag design. The marbled pattern and swirled appearance of the glass add to its unique appeal and character. Most homes in the late 19th century and even some older homes today could be found using a slag glass lampshade as decor. The Pittsburgh Lamp, Brass & Glass Company - The Lampworks Free shipping on many items . Glass Collectible Antique Lamps, Glass Tobacco Pipe, Coca-Cola Glasses; Additional site . The mark will usually be somewhere inconspicuous and be printed fairly small. Marble design mushroom shade has a 7 1/2'' dia. The key to determining if a piece of glass is "true" slag or just a handsome example of pressed glass is to look for glass that is obviously and richly marbled rather than simply colored or streaked. LAMP SHADE - Leaded slag glass lamp shade, TABLE LAMP - A four panel, dark green slag. No other type of glassmakingincluding carnival, imperial, milk, depression, or uraniumhas this distinct creamy swirl effect. 1230C - 10 1/4 Ceramic Green Tone Vase Lamp. Mineral Identification Labels (#185769230073) o***l (1621) - Feedback left by . One of the most common applications of vintage slag glass is in lighting. For example, simple things like a bowl sold for around $20 apiece. True slag glass is richly marbleized, deeply colored glass rather than glass that is colored with pale swirls or streaks, which is also known as malachite, marbled and variegated glass. Slag Glass prices range from 50 dollars to 1500 dollars. If you cant see any light passing through, the glass may be frosted or pressed glass instead of slag glass. Slag glass is created when steelmaking byproducts are melted down and formed into translucent blocks or shards. Many lamps are marked as much as three times (on the base, shade, and metal fitter rim). Fenton Glassware: Identification and Value Guide - Antique Mall Handel Teroca lamps were so successful that the next line of lamps introduced were called Teroma. Its important to note that newer slag glass pieces may not have as much character or value as older ones. Slag glass was also created by taking two colors of glass and combining them to create what was called "mosaic glass" in 1902 in Pennsylvania by glassmakers Thomas Dugan and Harry Northwood. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. Real slag will always have a creamy marble effect. However, towards the edge of the streak, the slag may instead be a lighter and creamier version of whatever the base color was since they were more mixed together. Your caramel slag glass paneled lamp dates from the 1910s through the 1920s. The Pittsburgh Lamp, Brass & Glass Company was assigned at least five lighting-related patents between August 28, 1900 and March 21, 1916. Antique Waltham Pocket Watch Value (Identification & Price Guides), Antique Typewriter Value (Identification & Price Guides), Antique Brass (Identification & Price Guides), Antique Hutch Value (Identification & Price Guides), Antique Paperweights Value (Identification & Price Guides), 15 Rarest Vintage Bratz Dolls Worth Money, Benrus Watch Value (Identification & Price Guides), Antique Blue Willow China Value (Identification & Price Guides), Antique Car Blue Book (Car Value & Identificatiron), Old Buttons Value (Identification & Price Guides), Skeleton Key Value (Identification & Price Guides). Imperial Glass - Guide to Value, Marks, History - WorthPoint The three lights retains their 1930s; verdigris patinated spelter female nude dancer, on new Donegan cast iron step base, one arm supports, light with frosted glass globe, 22 in. I have a vintage slag glass desk lamp with the mark cCco on the plate that holds the shade on. You can find antique slag lighting fixtures for sale on websites such as Etsy for as low as $20 or as much as $16,000. rim, lamp is 20'' long x 11'' long. column support set beneath an opaque glass fount with painted silhouette bird and foliate detail and with a spherical etched glass shade and clear glass chimney together with search our price guide for your own treasures. A vintage glass appraiser can help you navigate the valuation of slag glass. Imperial's success was guaranteed by one its first orders -- approximately 20 different items to be supplied to almost 500 F. W. Woolworth stores. Saarbrcken campus | Universitt des Saarlandes Slag is a somewhat unusual word, and unless you really know your glassware, the term Slag Glass probably wont ring a sort of bell at first. Fenton produced quality glass, so you should not find any defects like bumps or air bubbles . George Davidson is believed to have made this brown buglein the late 19thcentury, one of the first pressed glass pieces known today. Production of slag glass originated in late 19th century England. Slag glass can come in a range of colors, including shades of green, brown, pink, blue, and purple. Stepped marble LAMPS.Two antique Czech glass fruit basket boudoir lamps., Cast spelter metal bases with figural handles, (one pair of handles as is). This type of information could make a difference in the price of your lamp and without knowing, I must assume there is no indication of the maker on this piece. . Be sure to leave us a comment. Have you ever wondered what someone meant by slag glass? Glassmakers have achieved a similar-looking marbled effect to slag by simply mixing two different colors of glass together. Lamp sockets - Genuine antique replacement sockets (Lighting) The history of lighting fixtures can be researched back to the cave days. The dimensions Length x Height. Browse Similar. The edges may be uneven or jagged, and the overall shape may be asymmetrical. Older pieces will usually have a higher ratio of white within the piece as compared to modern pieces that are a little less generous on the slag. 1231C - 10 1/4 Ceramic Amber Tone Vase Lamp. Take a walk down the brick-lined memory lane with these vintage Lego sets. If green-colored glass called the 'slag' is used to make the stained glass, it's probably made in the early 1900s. Many antique lamps of these periods were made with stained glass, rather than slag glass, and a careful review of the glass opacity and patterns is necessary to determine the difference. Look for labels indicating the glass is made from recycled materials, such as Cinderella or marble glass.. A Fenton hobnail 4 1/2-inch vase can go for $15 to $50. I would say the lamp is from the 30's or 40's. glass glasses lamps marks plates. SHADE A vintage figural spelter table lamp, the depiction of a young man holding a cluster of grapes. Compare the texture, pattern, and color of the glass with known slag glass pieces to differentiate it from other types of opaque glass. Slag glass is a term used to describe a type of colored pressed opaque glass made using the "slag" left over during the iron smelting process. Atterbury & Company, Challinor Taylor & Company, and H. Northwood Glass Company are some well-known manufacturers from the United States. This is because the top manufacturers of the day often did leave any identifying brand marks on the fixtures. This is a big part of why slag glass is so valued today. For todays collectors, slag glass is a greatly sought-after item that can go for a lot of money. With a little practice, youll be able to spot slag glass in no time at all. The principal feature of slag class is that its made from a residue by-product of iron smelting. Brown and purple are the most common colors for vintage pieces but Sowerby, as well as other manufacturers, also created some pieces in blue and green with the typical white streaking. When iron-ore is smelting during steel production, the remaining residue is a glass-like, glossy material. Have any questions? Add your item here. They're easy to find, and make a colorful, decorative display in your home, offi, What Is Vaseline Glass? $1,551 57% Off $3,600. Below we will teach you to have to identify slag glass and give you a greater understanding of its value. The colors of slag glass are also a great way to identify authenticity. It was my grandmothers and is over 60 years old. M.L. How To Identify Slag Glass Antiques A more specific title for this type of glass would be mosaic glass. 1231A - 10 1/4 Alpha Art Glass Amber Vase Lamp. 7 Avon Collectible Bottles Worth Thrifting. Golden glass pieces should have a translucent, amber sheen to them in order to be authentic. Whats the difference between Slag Glass and Stained Glass? According to the Glass Encyclopedia, Slag glass is made by mixing pulverized silicate slaginto glass-pressing. During the 1920s and 1930s, slag glass fell out of fashion and was replaced by more modern designs. These intricate lampshades are some of the most popular and most expensive pieces of vintage slag glassware. Bradley & Hubbard attributed table lamp A large octagonal paneled table lamp with green slag glass shade, #T9365 on base, #18 872 Meriden,. Check the bottom or inside of an item for either a name or logo of a manufacturer. Early examples of slag glass already came in a variety of colors, but modern styles of mosaic glass are available in a seemingly endless array of hues and shades. White melts into a pale lavender when it intersects with the opaque purple. Question: Im looking to find some info on this slag glass lamp. All rights reserved. Fenton Rose Pastel Hobnail 4 1/2-inch Vase. It wasnt longer before Davidson, Sowerby and other glass makers began experimenting with different colors, combining streaks of creamy opal with purple, yellow, blue, and green. Oftentimes the pieces labeled as variegated glass have more stripey streaks in contrast to the more organic swirls of a true marble pattern. Caramel 'Slag Lamp' Value Lights Up - Antique Trader A piece of slag glass will be worth more if it is a rare color or a rare item. If the item is in good condition, with no cracks, discoloration, or signs of neglect, it will be worth more. Glass Type. They are a great way to add color to any room. I will include suggestions and comments along with links regarding shipping and packaging. The base of slag glass is an opaque color, and the streaks are typically a milky white or cream color. Consulting with a professional or experienced collector can help determine the approximate value of a particular piece of slag glass. The value of slag glass can vary greatly depending on factors such as age, condition, and rarity. How do you identify a glass slag lamp - Wiki The factory at one time was owned by the former West Virginia Glass Company. Vintage pieces can also be commonly found in a dark purple color. If you suspect that the piece may be vintage, check for age-related wear or markings on the glass itself or any accompanying hardware, such as lamps or furniture. This is listed on the bottom of most slag glass items, especially lamps. Metal issues or glass issues I may not see in the pictures. The chart below highlights some recently sold slag glass items. Maybe inherited a Tiffany stained glass lamp or Handel lamp that needs a little love. It is a rather nice example of lamps of this type and I would place a value of $300 to $400. Slag glass is not completely opaque like frosted glass. Would anyone know the company that might of cast this lamp base? Although, the majority of slag glassware was created as decorative pieces. Thank you. If the metal is shiny, the glass is pristine, and the lamp generally looks newer overall, it might be a reproduction. This is the most difficult distinction to make if youre not a professional. Remember, being cautious and taking your time while identifying slag glass can help ensure you make a wise purchasing decision. Shop at WAYFAIR Made of curved slag glass panels set into a metal frame, that from the photograph appears to be brass, this is a very nice example of . Most slag glass replacement panels are completed the same week. Here is everything that you could ever want to know about slag glass. I have a vintage slag glass desk lamp with the mark cCco on This$13,464 pair of slag glass lampson Etsy is one example, along with this complete setfrom the Hilltop Steakhouse in the United States, being sold for an even $15k on eBay. One of the easiest ways to identify slag glass is by its marbled or swirled pattern. Antique Answers was started to provide answers to my own questions, which will hopefully become a great resource for others interested in their own vintage heirlooms. Opalescent or iridescent glass can be worth more. Markings for Bigelow and Kinnard, Kramer, Steuben, Bradley and Hubbard, Stickley, Gorham . Slag glass gets its name from slag. Handel Lamp Guide - Authenticate, Value, Sell | Handel Lamps She added custard glass to the company's color line in 1969 and iridescent (carnival) in 1972. Designers would create intricate stained glass style patterns and scenes within lampshades. Tiffany lamps: How to tell real from fake - Antique Trader Whether youre looking for a decorative piece to spruce up the place, or searching for that next big purchase as a collector, the world of slag glass has something for everyone. Est. Historical Museum Saar (Saarbrcken) - All You Need to - Tripadvisor Show & Tell. Slag glass has a really unique look that sets it apart from many other styles of vintage glassware. Copper tone spelter. 100s Of Great Lamp Sockets - Original Antique Lamp Socket Tutorial Polly Pocket toys may be small in size, but they're big on value. You may also wish to polish the piece with a small amount of mineral oil for added shine and protection. Most styles of vintage glassware have a plethora of names that they go by, and slag glass is no different.

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