A kaleidoscope is an optical instrument with two or more reflecting surfaces tilted to each other at an angle, so that one or more objects on one end of these mirrors are shown as a regular symmetrical pattern when viewed from the other end, due to repeated reflection. These reflectors are usually enclosed in a tube, often containing on one end a cell with loose, colored pieces of glass or other transparent materials to be reflected into the viewed pattern. Rotation of the cell causes motion of the materials, resulting in an ever-changing view being presented.
Art glass is a subset of glass art, this latter covering the whole range of art made from glass. Art glass normally refers only to pieces made since the mid-19th century, and typically to those purely made as sculpture or decorative art, with no main utilitarian function, such as serving as a drinking vessel, though of course stained glass keeps the weather out, and bowls may still be useful.
Fire-King is an Anchor Hocking brand of glassware similar to Pyrex. It was formerly made of low expansion borosilicate glass and ideal for oven use. Currently it is made of tempered soda-lime-silicate glass in the US and borosilicate in Japan
Uranium glass is glass which has had uranium, usually in oxide diuranate form, added to a glass mix before melting for colouration. The proportion usually varies from trace levels to about 2% uranium by weight, although some 20th-century pieces were made with up to 25% uranium.
Lustreware or lusterware is a type of pottery or porcelain with a metallic glaze that gives the effect of iridescence. It is produced by metallic oxides in an overglaze finish, which is given a second firing at a lower temperature in a "muffle kiln", or a reduction kiln, excluding oxygen.
Famille jaune, noire, rose, verte are terms used in the West to classify Chinese porcelain of the Qing dynasty by the dominant colour of its enamel palette. These wares were initially grouped under the French names of famille verte, and famille rose by Albert Jacquemart in 1862. The other terms famille jaune (yellow) and famille noire (black) may have been introduced later by dealers or collectors and they are generally considered subcategories of famille verte. Famille verte porcelain was produced mainly during the Kangxi era, while famille rose porcelain was popular in the 18th and 19th century. Much of the Chinese production was Jingdezhen porcelain, and a large proportion were made for export to the West, but some of the finest were made for the Imperial court.
Depression glass is glassware made in the period 1929–1939, often clear or colored translucent machine-made glassware that was distributed free, or at low cost, in the United States and Canada around the time of the Great Depression. Depression glass is so called because collectors generally associate mass-produced glassware in pink, yellow, crystal, green, and blue with the Great Depression in America.
Milk glass is an opaque or translucent, milk white or colored glass that can be blown or pressed into a wide variety of shapes. First made in Venice in the 16th century, colors include blue, pink, yellow, brown, black, and white.
W. Moorcroft Limited is a British art pottery manufacturer specialising in richly decorated earthenware. based at Burslem in Stoke-on-Trent, England. The company was founded by William Moorcroft in 1913.
Royal Copenhagen, officially the Royal Porcelain Factory, is a Danish manufacturer of porcelain products and was founded in Copenhagen in 1775 under the protection of Danish Dowager Queen Juliane Marie. It is recognized by its factory mark, the three wavy lines above each other, symbolizing Denmark's three water ways: Storebælt, Lillebælt and Øresund.
The Fenton Art Glass Company is a glass manufacturer founded in 1905 by brothers Frank L. Fenton and John W. Fenton.
The Westmoreland Glass Company was a company that produced glass in Grapeville, Pennsylvania.
Elegant glass is high quality glassware created in the United States during the Depression Era. It was sold for high prices in department stores and given as wedding gifts. Although part of the Depression Era, it is considered by most to be a separate category or sub category of Depression glass. When new, Elegant glass would cost more than standard Depression glass, because it was at least partially handmade, had a cleaner finish, and more vibrant colors. From the 1920s through the 1950s, Elegant glass was an alternative to fine china. Most of the Elegant glassware manufacturers closed by the end of the 1950s, and cheap glassware and imported china took its place.
Early American molded glass refers to glass functional and decorative objects, such as bottles and dishware, that were manufactured in the United States in the 19th century. The objects were produced by blowing molten glass into a mold, thereby causing the glass to assume the shape and pattern design of the mold. When a plunger rather than blowing is used, as became usual later, the glass is technically called pressed glass. Common blown molded tableware items bearing designs include salt dishes, sugar bowls, creamers, celery stands, decanters, and drinking glasses.
Pacific Clay Products, founded 1892, was created by the merger of several Southern California potteries in the US. The company began producing utilitarian pottery in the 1920s, and introduced solid color earthenware dinnerware in 1932. The primary site for the production of ceramic tableware, kitchenware, and art ware was based in the company's Lincoln Heights, Los Angeles plant at 306 West Avenue 26. Pacific Clay ceased production of ceramic dinnerware and art ware in 1942. After 1942, Pacific Clay produced sewer tile and brick. The company ceased production of sewer tile in 1997. The company continues to produce brick products in Lake Elsinore, California. The company has been owned by David H. Murdock since 1973.
California pottery includes industrial, commercial, and decorative pottery produced in the Northern California and Southern California regions of the U.S. state of California. Production includes brick, sewer pipe, architectural terra cotta, tile, garden ware, tableware, kitchenware, art ware, figurines, giftware, and ceramics for industrial use. Ceramics include terra cotta, earthenware, porcelain, and stoneware products.
The Dugan Glass Company was a decorative glass manufacturer based in Indiana, Pennsylvania. The company was in business from 1905 until 1913.
The Northwood glass company was a manufacturer of art glass in various locations in the United States from 1887 to 1925.
Art Nouveau glass is fine glass in the Art Nouveau style. Typically the forms are undulating, sinuous and colorful art, usually inspired by natural forms. Pieces are generally larger than drinking glasses, and decorative rather than practical, other than for use as vases and lighting fittings; there is little tableware. Prominently makers, from the 1890s onwards, are in France René Lalique, Emile Gallé and the Daum brothers, the American Louis Comfort Tiffany, Christopher Dresser in Scotland and England, and Friedrich Zitzman, Karl Koepping and Max Ritter von Spaun in Germany. Art Nouveau glass included decorative objects, vases, lamps, and stained glass windows. It was usually made by hand, and was usually colored with metal oxides while in a molten state in a furnace.
Cut glass or cut-glass is a technique and a style of decorating glass. For some time the style has often been produced by other techniques such as the use of moulding, but the original technique of cutting glass on an abrasive wheel is still used in luxury products. On glassware vessels, the style typically consists of furrowed faces at angles to each other in complicated patterns, while for lighting fixtures, the style consists of flat or curved facets on small hanging pieces, often all over. Historically, cut glass was shaped using "coldwork" techniques of grinding or drilling, applied as a secondary stage to a piece of glass made by conventional processes such as glassblowing.
