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A certificate of analysis (COA) is a formal laboratory-prepared document that details the results of (and sometimes the specifications and analytical methods for) one or more laboratory analyses, signed—manually or electronically—by an authorized representative of the entity conducting the analyses. This document gives assurances to the ...
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Libbey, Inc., (formerly Libbey Glass Company and New England Glass Company) is a glass production company headquartered in Toledo, Ohio. It was originally founded in 1818 in Cambridge, Massachusetts , as the New England Glass Company, before relocating to Ohio in 1888 and renaming to Libbey Glass Co .
Brown glass jars with some clear lab glassware in the background Laboratory glassware may be made from several types of glass , each with different capabilities and used for different purposes. Borosilicate glass is a type of transparent glass that is composed of boron oxide and silica, its main feature is a low coefficient of thermal expansion ...
The secondhand Facebook group also piqued the interest of Whitney Granger, a vintage and antique jewelry collector from Colorado. She launched the Uranium Glass Jewelry Facebook group in 2020 when ...
The glass used was crystal and seven colors of glass: amber, blue, green, pink, amethyst, brown, and ruby. Among Jamestown stemware, ruby is valued higher than other colors by collectors. [80] Among the milk glass patterns, Vintage was used for tableware and a few types of stemware from 1958 to 1965. [81]
COAs are mostly common in the art world. Generally speaking, a valid COA for an artwork will include specific details about the artwork like when and how it was produced, the names of people or companies involved in the artwork's production, the work's exact title, the dimensions of the art, and the names of reference books, magazines, or similar resources that contain either specific or ...
1892: Establishment of glassworks Schreiber and nephews (Schreiber und Neffen) by its owner and founder Joseph Schreiber.The glassworks starts with the production of flat glass and tableware pressed glass, but mainly focused on the production of drinking glasses and sets for wholesale customers (hotels, medical centers, cafeterias) under the brand name Rona Crystal.