Parallel rule

Parallel rule with a box.

Ruler: Wooden parallel ruler consisting of three bars, with a brass protractor attached to the left hand end of the centre bar by a brass bracket with pointer and clamp screw.

Protractor: Dia. 4.5" (11.4 cm) the outer brass ring graduated quadrantally in degrees and inscribed at North "NORD DE LA CARTE". The inner silvered disc rotates and is graduated quadrantally in degrees and to 32 points.

In wooden box with instruction booklet.

Object Details

ID: NAV0617
Type: Parallel rule
Display location: Not on display
Creator: Schiavetti-Bellieni
Date made: circa 1820
People: Home, Milne
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 20 mm x 400 mm x 83 mm
Parts: Parallel rule