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The Carmona wine urn is a first-century Roman glass urn containing intact wine. The urn was discovered in 2019 in Carmona, Spain during excavations of the city's western Roman necropolis . Analysis of the urn's contents five years after its discovery demonstrated the contents to be the oldest surviving wine in the world.
Pages in category "Spanish stained glass artists and manufacturers" The following 4 pages are in this category, out of 4 total.
Crown glass is hand-blown glass created by blowing a bubble of air into a gather of molten glass and then spinning it, either by hand or on a table that revolves rapidly like a potter's wheel. The centrifugal force causes the molten bubble to open up and flatten. It can then be cut into small sheets.
Aware that glassware made by Eureka Art Glass could have trouble competing with European makers, an editorial in the May 1932 issue of Carbone's sales brochure known as The Shard described tool marks and unevenness in hand blown glassware as qualities to be desired. The writer of the article was "W.H.B", and one author says the writer was ...
At the beginning of the 17th-century wine bottles were small and thin-walled, making them difficult to store and ship. During the 1630s, privateer turned inventor Kenelm Digby teamed up with James Howell, creating a method of making stronger glass with hotter furnaces.
Only glass products containing at least 24% lead oxide may be referred to as "lead crystal". Products with less lead oxide, or glass products with other metal oxides used in place of lead oxide, must be labeled "crystallin" or "crystal glass". [4] In the United States it is the opposite - glass is defined as "crystal" if it contains only 1% lead.