- Subject
- Surveying
- Item type
- Object
- Makers
- Seid Mohsin
- Primary inscriptions
- "Differential Preambulator / Designed by Major Everest / Excecuted by Seid Mohsin / Masuri 15th October 1833". Also inscribed: "Fore wheel shows thousandths / Back wheel miles and tenths".
- Object type
- Waywiser
- Dimensions
- Diameter: 100mm
- Inventory No
- 42112
Description
Brass, khaki lacquered, case with two large brass gear wheels engaged in a worm gear and driving shaft of iron. The gear wheels are calibrated and are under a glass cover.
