Folding rule

Folding rule retrieved from the wreck of the Stirling Castle, which went aground on the Goodwin Sands in the Great Storm of 1703.

2 fragments of one rule
Inscribed on 2 faces only: 1 in inches; other non-linear?
Fragment 1: 201 x 21 x 9 mm
One side carries a scale of inches from 11 to 14 by tenths. One edge shows traces of an unidentified scale 110 to 130.

Fragment 2: 124 x 20 x 9 mm
One side carries a scale of inches from 20 to 30 by tenths. One edge shows traces of an unidentified scale 20 to 40 and 30 to 40. It has four brass location studs.
Marked 12 at hinge

Object Details

ID: NAV0593
Type: Folding rule
Display location: Not on display
Creator: Unknown
Events: Great Storm, 1703
Vessels: Stirling Castle 1679
Date made: circa 1703
Credit: National Maritime Museum, Greenwich, London
Measurements: 10 mm x 201 mm x 20 mm