identifying slag glass lamps
All rights reserved. The worth and value of slag glass varies. Ruby Red LLC is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It could have internal or external threads. Quezal shades were often used in groups on a table lamp or chandelier. Most antique slag items are brown, blue, green, or purple. Wonderful petite, Original 1910-1920's slag glass lamp, shows, REVERE Copper and slag glass lamp, its faceted. Can you Tiffany Lamp Sells High Michaan's Auctions in California . If youre still unsure if a piece is slag glass, consult with a professional or experienced collector for their opinion. Theres a fairly large price range for slag glass, with intricate vintage lampshades fetching the highest price. Pieces from well-known manufacturers or in rare colors may fetch a higher price. Determining slag glass worth will vary in difficulty depending on what you're looking for. This slag is predominantly binary compoundsof elements such as silicon, sulphur, and aluminium reacting with the sides of foundry molds. I'm Stacy Jones and I love antiques! The result is a material that lies somewhere between porcelain and glass. Slag glass, also known as marble glass or Cinderella glass, is an opaque, swirl-patterned glass. Vintage pieces can also be commonly found in a dark purple color. In addition to technically necessary cookies, this website uses the web analytics software Matomo. Tiffany, Roycroft or Steuben lampshades made with slag glass can command prices of up to $20,000. 1231A - 10 1/4 Alpha Art Glass Amber Vase Lamp. This material takes on different colors depending on the minerals and elements that are present in the iron. The lustrous glass often had threads of glass in contrasting colors pulled through the surface to form a feather shape. Work with a qualified appraiser to help you identify the manufacturer and type of slag glass antiques you have, including antique glass insulators, to determine the true market value. Note the glass type 5. (History, Series & Value). Estimate $400/600 Sold with Premium 258.30 Closed October 27, 2022 171. antique lamp parts, sockets, and prisms - Laurel Leaf Farm 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 Manufacturers used the glass in molds to make bowls, compotes, vases, plant cache pots, and more. Contact Us. Look for age-related wear or markings on accompanying hardware, such as lamps or furniture. Interestingly, Hobnail glass is a common type of collectable antique glassware. Though it's easily mistaken for other glass products produced around the same time period, such as stained glass, slag glass has its own unique look and slag glass items can fetch a wide range of prices. Leave it in the comments below! 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. Manufacturers usually make slag glass by mixing this silicate slag with clear glass. While it may not be as popular as other types of glass, slag glass is beautiful in its own way. Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. Find Fenton markings 3. Happy collecting! 2023 LoveToKnow Media. One of the most common applications of vintage slag glass is in lighting. When identifying authentic slag glass, pay close attention to the marbling. The term slag refers to the molten run-off that is produced during iron smelting as the metal cools off. If exposed to a black light, the glue residue would show on a newer lamp. Atterbury & Company, Challinor Taylor & Company, and H. Northwood Glass Company are some well-known manufacturers from the United States. Amber Caramel Slag Glass Hanging Swag Lamp Light Lighting Fixture 70's 1970's. $74.99. Hanging Slag Glass Lamp, ca. Glass Collectible Antique Lamps, Glass Tobacco Pipe, Coca-Cola Glasses; Additional site . Take extra care to avoid leaving any streaks or marks on the surface of the slag glass. Its no surprise that this style is most typically referred to as marble glass. She added custard glass to the company's color line in 1969 and iridescent (carnival) in 1972. How to Identify Vintage Lamps | Urban Americana Many manufacturers used colored slag glass to create elaborate patterns in the lamp bases and shades, while others used the glass to create everyday scenes and landscapes. In this case, the slag used for marbling glass is produced when iron is heated during the production process. Antique slag items are usually brown, blue, green or purple. Image 1: Tiffany Studios Hanging Head "Dragonfly" Floor Lamp. Stidwill's Antiques. Its important to note that newer slag glass pieces may not have as much character or value as older ones. L. G. Wright Glass - Guide to Value, Marks, History - WorthPoint Dr. Anthony J. Cavo is an honors graduate of the Asheford Institute of Antiques and a graduate of Reisch College of Auctioneering. Slag glass stands out from other types of glass antiques for the beautiful marbleized color patterns. 9. Save my name, email, and website in this browser for the next time I comment. Antique Slag Glass Lamps - Etsy A Hanging Slag Glass Lamp, circa 20th Century Six sides of milky slag glass in a metal frame with a copper finish. Cloudflare Ray ID: 7c0b058ee94819fc With a little practice, youll be able to spot slag glass in no time at all. Cavo is the author of Love Immortal: Antique Photographs and Stories of Dogs and Their People. 2. On the other hand, slag glass can easily leave people confused. Slag glass was originally created in the United Kingdom in the 1890s by adding this slag substance during the glass-making process. Outstanding full floral Duffner and Kimberly dogwood lamp. If the piece is pink, orange, or red it is not vintage. Inspect the glass closely and see if you can spot tiny specks of color - known as 'confetti' glass - a sure fire sign that the lamp is genuine. Vintage Slag Glass Lamp Antique Boudoir Lamp Slag Glass Lamp Arts & Crafts Lamp Art Nouveau Vintage Lamp Ornate Lamp 5 out of 5 stars (115) $ 375.00. Slag glass has something that cannot be found in imperial glass, uranium glass, milk glass, depression glass, carnival glass, or any other type of vintage collectors glassware. The mosaic glass created in Pittsburgh was a mixture of purple and either white or an opal shade. 2002-2023 LoveToKnow Media. A similar look was created around the same time by U.S. manufacturers Northwood and Dugan. Brown with silky cream streaks was the first colorpalate of slag glass, and vintage pieces with this tint are some of the rarest and most valuable today. Ph.D. antiques appraiser Dr. Lori reveals tips to tell if the piece you think might be Tiffany glass is really slag glass used for that lamp shade or other p. The marbling is sometimes compared to tortoiseshell. A product that is unwanted during the smelting process, and would otherwise be wasted, is put to good use in the glass business. How to Tell if You Have a Lamp That's Worth Money - The Nest These imperfections add character and are not considered flaws in slag glass. Slag glass is pressed and untempered glassware, much like depression glass. Most companies have halted the production of slag glass items altogether. Handel Lamp Authentication Guide | Identify Handel Lamps | Handel Lamps Some manufacturers of slag glass will label their products as Cinderella or marble glass. These labels indicate that the glass is made from recycled materials, making it easier to identify as slag glass. Fenton Art Glass Identification and Value Guide - The Spruce Crafts Both styles create the same swirl effect, and originals of both are considered vintage and valuable. 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. Slag is the byproduct of steel production. Fenton produced quality glass, so you should not find any defects like bumps or air bubbles . In addition, slag glass panels were used in lamps, jewelry boxes, and other collectibles. Sotheby's, New York, NY (December 2017) Estimate: $300,000 - $500,000. Slag glass gets its name from slag. His masterpiece is the Lutheran Ludwig's Church, which stands at the centre of a rectangular plaza. You can tell the age/authenticity of stained glass by looking at the glass that's used. Performance & security by Cloudflare. How do you identify a glass slag lamp - Wiki You'll find slag glass in blues, browns, and greens as well, though these colors are rarer than the brown/white/cream and purple formulations. How I can identify bent slag glass lamp issues Slag glass replacement panels are made to order. List of Vintage Lamp Manufacturers - RetroWaste In some of the most stunning lighting pieces, small pieces of the slag glass were laid out in a metal framework. 30 slag glass lamps for sale; 401-314-6005 (12-6 ESTime) non text# Email pictures to: Len.Daley@yahoo.com. Another common use for slag glass was for various lighting pieces. Antique Slag Glass Lamps | Collectors Weekly This byproduct can then be pulverized and used as a glass additive. 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. Save my name, email, and website in this browser for the next time I comment. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Vintage Slag Glass Value (Identification & Price Guides), Vintage Hummel Plates Value (Identification & Price Guide), Brown Betty teapot Value (Identification & Price Guides), How Much Is a 2-Dollar Bill Worth? One item where slag glass was used often was in the creation of antique oil lamps, chandeliers and lampshades, particularly during the Art Deco and Art Nouveau periods during the late 19th and early 20th century. The marbled pattern and swirled appearance of the glass add to its unique appeal and character. Verna Mae Wright, L. G. Wright' wife, directed the company following Wright's death in 1969. Be careful not to mistake slag glass for other types of glass that may have a similar appearance, such as milk glass or opalescent glass. Slag glass is commonly found in antique lamps and light fixtures but can also be used for decorative windows or tiles. 2023 Active Interest Media All rights reserved. Color, age, and manufacturer are definitely important in determining the value of a vintage piece. Look for a Fenton tag (used before 1970), look for the Fenton mark ("Fenton" in an oval), look for "F" in an oval, indicating another company's mold was used (1983+). Imperial Glass - Guide to Value, Marks, History - WorthPoint Discerning Victorian consumers resisted purchasing marbleized glass in some cases and preferred more decorative elements in crystal. A Fenton hobnail 4 1/2-inch vase can go for $15 to $50. With the first versions of slag glass being an opaque brown with cream to caramel-colored streaks, slag glass is also known by the names of brown malachite or brown marble vitro porcelain (brown marble). Glass Type. Polly Pocket toys may be small in size, but they're big on value. Most homes in the late 19th century and even some older homes today could be found using a slag glass lampshade as decor. A large part of the 2,700 m exhibition area is located under Schlossplatz. Lamp measures 5 1/2'' h. x 11'' x 5'', globe measures. Serious antique glass collectors will be familiar with "slag glass" which became popular in the late 1800s and is still made today. Some slag glass may also have opaque white sections, often in the form of streaks or patches. Signed slag glass tends to be worth more than unmarked slag glass. FIGURAL SLAG GLASS LAMP. Dont confuse newer pieces with older, vintage ones. They also began producing opaque golden, creamy colored glass known as caramel slag that allowed the passage of enough light to give a room a soft, warm, golden ivory glow. This being the glass version rather than stone, it makes sense to call it how you see it. 1. This will ensure that the money you are spending is worth it. Designers would create intricate stained glass style patterns and scenes within lampshades. Original Tiffany Lamps employed this metallic finish on the resin base. You may also wish to polish the piece with a small amount of mineral oil for added shine and protection. If the item is in good condition, with no cracks, discoloration, or signs of neglect, it will be worth more. The history of slag glass goes back to the late 1890s in Gateshead in the northeast of England. These tips and tricks can help to ensure further that a piece is indeed slag glass. This website is using a security service to protect itself from online attacks. Diyquickly.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon.com, endless.com, smallparts.com, myhabit.com, and any other website that may be affiliated with Amazon Service LLC Associates Program. When identifying slag glass, look for a marbling effect. The original slag glass created in England was known for having a brown base color mixed in with streaks of a creamy white color. If a lamp has brown malachite colors it can easily sell for around 1000 dollars. Antique Glass Insulators and Their Electrifying History, Antique glass insulators are a low cost but very popular collectible that come in a myriad of fun shapes and colors. 100 Professional Tiffany-Slag Curved Glass Repairs Typically vintage pieces will be worth the most, but some collectors may still value the piece. Egyptian patterns were also common due to the interest in the tomb of King Tut in the early 1920s. Slag glass lamps are one of the most sought-after items made of slag glass. Modern day slag glass manufacturers in the U.S. include Fenton, Mosser, Summit and Boyd Glass. Check the bottom or inside of an item for either a name or logo of a manufacturer. Slag glass of other colors is unlikely to be an antique. In this guide, well cover everything you need to know about slag glassfrom its history to how its made, what its worth, and how to identify a vintage piece. 1235 - 8 1/2 Florentine White Moonstone Vase Lamp. I can best help you after you email pictures To complete your quote for restoration if you include the following. These patterns are created during the manufacturing process and give slag glass its unique appearance. Doyle New York, New York, NY (September 2004) Category 20th Century American Arts and Crafts Slag Glass Table Lamps Slag Glass Identification and Valuation - Antique Answers 1236 - 8 1/2 Florentine Green Moonstone Vase Lamp. There are several things to keep in mind when looking to identify whether something is slag glass or not. To do this, you'll need to remove the globe and burner. Not all glass pieces are clearly marked. How To Identify Tiffany Lamp - How to Tell Real From Fake If it feels bumpy or uneven, its likely slag glass. Opalescent or iridescent glass can be worth more. Slag glass was made by British companies Sowerby, Davidson and Greener during the Victorian era, around the 1880's . The light shining through the marbled color creates a really unique effect. Polly Pocket: History & Value of Barbies Biggest 90s Rival. Cabinet-Sized Slag Glass Specimen E1700 | eBay Manufacturers experimented with different methods to achieve this malachite-like look. These three manufacturers are very well known in the United Kingdom. One of the easiest ways to identify slag glass is by its marbled or swirled pattern. Start architect Friedrich Joachim Stengel has shaped Saarbrcken's cityscape like no other. early 20th, FIGURAL SLAG GLASS LAMP. 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. This being the glass version rather than stone, it makes sense to call it how you . The term slag glass is often used interchangeably with the terms flashed glass and stained glass. However, slag glass is a type of stained glass made from recycled materials. Telling slag glass apart from other styles is actually quite simple. Instead, the glassmaking duo from Pennsylvania combined two colors of molten glassone white and one opaqueto create the same marbled effect. If you cant see any light passing through, the glass may be frosted or pressed glass instead of slag glass. Slag Glass Identification. Rainaud, and Tiffany Studios. New York Art Deco Nude Dancer Spelter.