Golden glass pieces should have a translucent, amber sheen to them in order to be authentic. 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. While it may not be as popular as other types of glass, slag glass is beautiful in its own way. Become a national Fenton club member Fenton glassware prices 1. These colors are created during the manufacturing process and can vary greatly from piece to piece. Antique Lamps Online | Antique Vintage Lamps For example, simple slag glass items are priced similarly to depression glass. "Slag glass" is a collectors' name for opaque pressed glass with coloured streaks, usually white and/or cream streaks like this brown bugle made by George Davidson's in the North East of England in the 1890's. The name derives from the belief that these colours were achieved by adding slag from iron smelting works to the glass. Typically slag glass antiques will be vases, dishes, bowls and decorative figurines and picture frames. George Davidson is believed to have made this brown buglein the late 19thcentury, one of the first pressed glass pieces known today. Stidwill's Antiques. If you cant see any light passing through, the glass may be frosted or pressed glass instead of slag glass. Slag glass is often used as a catch-all term for any type of pressed glass that is opaque and colorful, but not all glass that fits this description is true slag glass. The wiring is not original to the lamp; originally it would have had cloth covered wire. CO. SLAG GLASS LAMP Base marked M.L. New York Art Deco Nude Dancer Spelter. A Hanging Slag Glass Lamp, circa 20th Century Six sides of milky slag glass in a metal frame with a copper finish. Use proper lighting to see the marbling and swirled patterns of slag glass. Recent Activity. How do you identify a glass slag lamp - Wiki Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. Additionally, the uniqueness and character of each individual piece can also affect its value. In addition to some examples shown below on this page, you can also search our price guide for your own treasures. To do this, you'll need to remove the globe and burner. This would still give the marble effect without the use of actual slag. Real slag glass will not have a solid color but rather a blended, marble look. Ruby Red LLC is compensated for referring traffic and business to these companies. Telling slag glass apart from other styles is actually quite simple. eBay (258) Magazine. The number of broken pieces. Set of four antique embossed brass hanging lamp socket covers, 3 3/4" in diameter overall. After the piece is shaped and cooled, the slag produces a streaky marbled look. No other type of glassmakingincluding carnival, imperial, milk, depression, or uraniumhas this distinct creamy swirl effect. Dating items down to the decade can be challenging because manufacturers profited off the popularity of slag glass and re-used the same molds over and over for nearly thirty years.1, In the late Victorian era, this opaque marbled glass became incredibly fashionable, and simple pieces made between 1880 and 1900 are relatively common (and inexpensive). Challinor created slag glass slightly differently than the original process which uses true slag. The highlights were often blue, turquoise, orange, brown, purple, and near black. Mixing antique pieces with modern amenities is a popular decorating technique.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'antiqueanswers_com-large-leaderboard-2','ezslot_8',165,'0','0'])};__ez_fad_position('div-gpt-ad-antiqueanswers_com-large-leaderboard-2-0'); Jeannette Glassware, originally Jeannette Bottle Works, was founded in 1888. The marbling is sometimes compared to tortoiseshell. How to Identify Slag Glass Types and Worth | Heirlooms at Home Slag glass is often cut and shaped by hand, leading to irregularities in shape. If you're looking for a softer glow in your room, install an amber light bulb to create a warmer light. Whats the difference between Slag Glass and Stained Glass? early 20th, FIGURAL SLAG GLASS LAMP. 4,089. CO. SLAG GLASS LAMP Base marked M.L. However, its important to note that some sellers may falsely advertise a piece as slag glass, so do your research before making a purchase. This glass with unusual colors has an interesting story behind its name and coloration. There are several things to keep in mind when looking to identify whether something is slag glass or not. 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 lustrous glass often had threads of glass in contrasting colors pulled through the surface to form a feather shape. The company mass-marketed lamps, tableware, and tumblers. Don't turn your nose up at these vintage perfume and cologne bottles from Avon. Polly Pocket: History & Value of Barbies Biggest 90s Rival. It can also be called Malachite glass, in reference to the stone. A Fenton hobnail 4 1/2-inch vase can go for $15 to $50. 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. Happy collecting! These are just a few of the companies that produce authentic slag glass. 7 Avon Collectible Bottles Worth Thrifting. 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? Copper tone spelter. These three manufacturers are very well known in the United Kingdom. If exposed to a black light, the glue residue would show on a newer lamp. 3. 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. 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. 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. Some famous makers include Tiffany Studios, Bradley Hubbard, and Handelwhose originals in good condition are very sought after. Sowerby was a popular producer of this blackberries and cream slag look. 100s Of Great Lamp Sockets - Original Antique Lamp Socket Tutorial Slag Glass Lamp | Ruby Lane Thank you. They moved across the Ohio River to Williamstown, West Virginia, and built a . Slag glass is commonly found in antique lamps and light fixtures but can also be used for decorative windows or tiles. 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. 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. Not all glass pieces are clearly marked. As molten iron cools, a silicate slag forms on top of it. Delivery from Downers Grove, IL 7-14 days Edit my Location. These tips and tricks can help to ensure further that a piece is indeed slag glass. Amber Caramel Slag Glass Hanging Swag Lamp Light Lighting Fixture 70's 1970's. $74.99. Slag glass producers mark their products with the companys initials or the companys logo. Shade measures 7 1/4" x 16 1/2". Remember, there is no right or wrong way to identify slag glass. Purple is the most common slag glass color. Handel Teroca lamps were so successful that the next line of lamps introduced were called Teroma. You may also wish to polish the piece with a small amount of mineral oil for added shine and protection. Bradley & Hubbard attributed table lamp A large octagonal paneled table lamp with green slag glass shade, #T9365 on base, #18 872 Meriden,. Happy collecting! To determine if an item is true slag glass or if its a combination of two molten glasses, consult a vintage glass appraiser. Slag glass is a type of opaque pressed glass that includes colorful streaks that create a marbled effect. Rainaud, and Tiffany Studios. 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. Handel Lamp Authentication Guide | Identify Handel Lamps | Handel Lamps VINTAGE SLAG GLASS LAMP All original wiring, Slag Glass Lamp, figural spelter base with, FIGURAL SPELTER LAMP WITH MARBLED ART GLASS, TWO ANTIQUE CZECH GLASS FRUIT BASKET BOUDOIR, ART DECO NUDE FIGURAL LAMP: Cast spelter, FIGURAL SLAG GLASS TABLE LAMP: Patinated, A pair of figural spelter oil lamps, with, Victorian Figural Spelter Lamp of Lady holding. Ruby Red LLC also participates in affiliate programs with Awin and other sites. Identifying slag glass can be a bit tricky, as there are many different types and colors of slag glass. Antique Slag Glass Lamps | Collectors Weekly 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. Remember, being cautious and taking your time while identifying slag glass can help ensure you make a wise purchasing decision. Restoring bent slag glass antique lamps with museum quality SINCE 1978. Another common use for slag glass was for various lighting pieces. Sowerby in Gateshead, England is believed to be the first glass foundry to create slag glass. Rubber and vinyl coated wires were not used until the post-World War II era. They may have additional insight or knowledge on identifying slag glass. Both beautiful and elegant in their own regard, stained and slag glass are actually completely different. Depending on the rarity of the item, slag glass is worth anywhere from $50 to $1500. Look for any imperfections or bubbles in the glass, which can indicate it is not true slag glass. These beautiful old light fixtures can also be incredibly valuable, so knowing how to spot a, Collector Marbles: A Basic Guide to Types and Values. This common characteristic of slag glass can add to its unique appearance. Imperial Glass introduced its iridescent (carnival) glass line in 1909. Slag Glass Lamps - Ideas on Foter An antique slag lamp in good condition and reviewed by a professional appraiser can be valued from as little as $150 up to $2,000 or more. As technology and manufacturing changed over time, new colors have been introduced to the slag design. 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. Some of these names can be used synonymously, but some of them have slightly different meanings that a serious collector should be aware of. 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. 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. Antique Slag Glass Lamps. 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. Search Alerts. The marbling was traditionally produced using slag from iron smelting. France, Late 19th Century. Included one glass screen with crack with figures of 2 seated nude maidens either side of center lamp with multi-color glass globe shade, no visible markings. Handel Lamps - oldlampvalues Consult a professional or experienced collector if youre unsure about a pieces authenticity. A similar look was created around the same time by U.S. manufacturers Northwood and Dugan. If you're hoping to add some historic charm to your home, antique chandeliers can be a wonderful choice. 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. 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. How To Identify Slag Glass Antiques The worth and value of slag glass varies. Glass Collectible Antique Lamps, Glass Tobacco Pipe, Coca-Cola Glasses; Additional site . Category 20th Century American Arts and Crafts Slag Glass Table Lamps Looking at the coloring of the piece can be a good start to figuring out if the piece is vintage or modern. Slag glass lamps are one of the most sought-after items made of slag glass. 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. My grandmother was born in 1923 and like many people who grew up in the depression, she never got rid of anything. IDENTIFY SHADE DESIGNS You can determine the age of a piece of slag by finding the date of production. To differentiate, compare the texture, pattern, and color of the glass to those of known slag glass pieces. Gothic Revival Slag Glass Panel Table Lamp by Bradley Hubbard Hubbell Sockets Bradley & Hubbard Bookends-Ancient Greek Temple Columns & Arch Gadrooned and Reeded Silverplated Bronze Sconces by Bradley & Hubbard, c. 1910s Six Arm Adam Style Chandelier in Antique Nickel by Bradley and Hubbard, c. 1920s The ecology website also notes that slag glass can be incorporated into landscaping designs or used as decorative stones in gardens and ponds. One of the most common alternate names for slag glass is marble glass, for obvious reasons. 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. With these tips in mind, you should be able to know how to identify slag glass. When identifying slag glass, look for a marbling effect. 2022 HEIRLOOMS AT HOME & AGELESS HEIRLOOMS. Original Tiffany Lamps employed this metallic finish on the resin base. Identifying Silhouette Slag Glass Lamp In Antique American Lighting, Antiques, Uncategorized on February 8, 2016 at 7:02 pm. Many lamps are marked as much as three times (on the base, shade, and metal fitter rim). Ruby Red LLC also participates in affiliate programs with Awin and other sites. Arts and Crafts Limbert Style Slag Glass Lamp The action you just performed triggered the security solution. When iron-ore is smelting during steel production, the remaining residue is a glass-like, glossy material. Slag glass, also known as marble glass or Cinderella glass, is an opaque, swirl-patterned glass. Look for manufacturing labels and company embossed stamps and raised imprints on the lamp. However, since each piece will have very unique marbling patterns, the estimated value can vary greatly based on personal preference. Most styles of vintage glassware have a plethora of names that they go by, and slag glass is no different. You can determine antique slag glass with a few steps: Slag glass antique items can run anywhere in value from a low of $50 to a high of $1,500. Manufacturers used the glass in molds to make bowls, compotes, vases, plant cache pots, and more. Take extra care to avoid leaving any streaks or marks on the surface of the slag glass. You'll be able to tell if this bronze is real if you notice a naturally occurring patina (greenish brown film that results from oxidation). Slag Glass Lamp - Aspire Auctions Slag is used to refer to the by-product that shows up when various ores and metals are smelted. 1. 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. It has become a sought after collectible for its unique appearance and history. Chances are if the glass is colorful and has a rough texture, its slag glass. The marbling is sometimes compared to tortoiseshell. Both styles create the same swirl effect, and originals of both are considered vintage and valuable. Brown malachite slag glass pieces are the rarest and most coveted colors of 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. As long as you consider the key characteristics marbled pattern, rough texture, translucent quality you should be able to identify it accurately. Start architect Friedrich Joachim Stengel has shaped Saarbrcken's cityscape like no other. A piece of slag glass will be worth more if it is a rare color or a rare item. The key identifying feature of this type of glass is its similarities to the patterning found in natural marble. The mosaic glass created in Pittsburgh was a mixture of purple and either white or an opal shade. Prof. Dr. Ralf Busch | Faculty of Natural Sciences and Technology . How To Identify Slag Glass by Dr. Lori - YouTube How to Identify Vintage Lamps | Urban Americana 1231C - 10 1/4 Ceramic Amber Tone Vase Lamp. The following research topics are of particular interest: Physical metallurgy; Thermodynamics and kinetics of metastable phase; Solid metallic glasses; . Have you ever wondered what someone meant by slag glass? If the item does not have any names or marks, the piece likely is a fake. As with many other types of vintage glassware, the slag glass technique can be found in all sorts of different pieces, decorative or functional. (Source). Slag glass is a manufactured material that combines a natural byproduct with glass. Two vintage brown Sowerby figurines can sell for two completely different processes depending on how the marbling came out. The marble should never be streaky and it should blend well with the color of the glass. It has distinctive a distinctive knob pattern and comes in a variety of colors. Grandmother's old lamp not "true" slag glass but still catches eye of appraiser to the tune of $300-$400. You can tell the age/authenticity of stained glass by looking at the glass that's used. Slag Glass - Kovels 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. Answer: The opaque bent panels of pressed glass with the creamy, golden swirls in your lamp are typically referred to as slag glass. This will ensure that the money you are spending is worth it. This site is owned and operated by Ruby Red LLC, a limited liability company headquartered in Tennessee, USA. For example, slag glass pieces with distinct marbling patterns or interesting shapes may be more valuable to collectors. 1230A - 10 1/4 Alpha Art Glass Green Vase Lamp. It could have internal or external threads. They bring a sense of the past into a home and they add a pop of color. Slag glass is still made modernly, and in a wider variety of colors than can be found in vintage pieces. Known by various other names, slag glass is instantly recognizable by its opaque glass and smooth blend of colorful streaks, creating a distinct marble effect. 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. How to Get Conch out of Shell without Breaking. A glass decoration plant opened in early 1968. Discerning Victorian consumers resisted purchasing marbleized glass in some cases and preferred more decorative elements in crystal. Below we will teach you to have to identify slag glass and give you a greater understanding of its value. Generally only old lamps feature a brass collar. Because of this, there is always a distinctive bump, indentation or spot where the glass was cut from the stem after it was shaped for the lamp.

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