Part of surveying compass, British, 1913-1920
Electrically illuminated liquid prismatic compass by Kelvin, Bottomley and Baird, early 20th century
- Materials:
- casing, metal , casing, glass , casing, water and casing, alcohol
- Object Number:
- 1922-44/1
Surveying compass, British, 1913-1920
- patentee:
- Louis Wentworth Pakington Chetwynd
Electrically illuminated liquid prismatic compass by Kelvin, Bottomley and Baird, early 20th century
Details
- Category:
- Surveying
- Object Number:
- 1922-44
- Materials:
- casing, metal, casing, glass, casing, water and casing, alcohol
- type:
- prismatic compass and magnetic compass
- credit:
- Miscellaneous Disposals Syndicate
Parts
Battery case for surveying compass, British, 1913-1920
Battery casing for electrically illuminated liquid prismatic compass by Kelvin, Bottomley and Baird, Glasgow, Scotland, 1913-1920.
- Measurements:
-
overall: 70 mm x 220 mm x 170 mm, .425kg
- Materials:
- metal (unknown) , brass (copper, zinc alloy) , copper (metal) , plastic (unidentified) , cotton (textile) , enamel , leather and phenolic
- Object Number:
- 1922-44/2
- type:
- instrument component , prismatic compass and magnetic compass
