Additional compass card for Admiralty standard prismatic azimuth compass
Additional compass card with two magnets for Admiralty standard prismatic azimuth compass. Made by Henry Barrow for the Admiralty, London, 1850-1860.
- Measurements:
-
overall: 12 mm, 155 mm, .05kg
- Materials:
- complete , cardboard , brass (copper, zinc alloy) and steel (metal)
- Object Number:
- 1876-802/1
- type:
- variation compass , prismatic compass and magnetic compass
- Image ©
- The Board of Trustees of the Science Museum