Turner's double callipers
Turner's double callipers, with fixing screw, by Holtzapffel and Company, London, England, 1895
- Measurements:
-
overall (as per object image): width = 240 mm
- Materials:
- steel (metal) and brass (copper, zinc alloy)
- Object Number:
- 1976-491/50/1
- type:
- double callipers