Hour-glass
A 20-minute glass filled with ochre sand. The centre joint is made of cloth bound over with twine. There are two removable cases made from cardboard covered with leather, with cut-away sides that exposes the glass inside. The outer case can be turned at ninety degrees to the inner so that the hour-glass is completely enclosed for protection. The outer case is warped and broken. This hour-glass may have been made for use while travelling.
Object details
| ID: | AST0076 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Hour-glass |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | unknown |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Overall: 102 x 50 mm |