Hour-glass

A 60-minute glass filled with ground black marble. The two ampoules are blown in one piece. It has a cylindrical brass stand with cut away sides. The legend '1 hour' is stamped on one of the bases. It is reputed to be a 'Sermon' glass.

Object Details

ID: AST0078
Collection: Astronomical and navigational instruments
Type: Hour-glass
Display location: Not on display
Creator: Unknown
Date made: circa 1800
Credit: National Maritime Museum, Greenwich, London, Caird Collection
Measurements: Overall: 172 mm x 65 mm
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