Ritchie's patent liquid compass with hollow metal cross type compass rose in tin bowl
- Made:
- 07-04-1863 in Boston
- patentee:
- Ritchie, Edward Samuel, Edward Samuel
Ritchie's patent liquid compass with hollow metal cross type compass rose in tin bowl, (cover glass of compass broken - see note). By E. S. Ritchie (patentee), Boston, 1863.
Details
- Category:
- Navigation
- Object Number:
- 1917-60
- Materials:
- brass (copper, zinc alloy), metal (unknown), cardboard, tin (metal), paint and incomplete: liquid has been drained.
- Measurements:
-
overall: 210 mm, 320 mm, 9.91kg
- type:
- magnetic compass
- credit:
- Wiggins, F. and Sons