Station keeper - Wharton's form
This image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseStation keeper - Wharton's form, ebony
Science Museum Group
© The Board of Trustees of the Science Museum
Station keeper - Wharton's form, ebony, box 7" long tapering from 2 1/4" to 3 1/2", 1" thick, one mirror is fixed and the other is moved by means of an index (brass) from 0 degree to 20 degrees subdivided to 1/2 degree by vernier reading to 10'. Sight hole at one end, open at the other
Details
- Category:
- Navigation
- Object Number:
- 1911-173
- type:
- station keepers
- credit:
- Admiralty Hydrographic Department
