Akademik

firing glass
a drinking glass of the 18th century having a conical, rounded body on a thick stem and a heavy spreading foot. Also called hammering glass.
[1900-05]

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firing glass,
a wineglass made in England and elsewhere from 1740 to 1800 which had a heavy base to rap on the table in response to a toast. It made a sound like a gun firing.

Useful english dictionary. 2012.