Hour-glass

A 30-minute ship's glass filled with white sand. The central joint is bound over with leather and twine. It has a cylindrical brass stand with five straight supports, and a brass wire becket attached to each end to hang it up by.

Object Details

ID: AST0069
Collection: Astronomical and navigational instruments
Type: Hour-glass
Display location: Not on display
Creator: Unknown
Date made: 18C
Credit: National Maritime Museum, Greenwich, London, Caird Collection
Measurements: Overall: 173 x 87 x 90 mm