Screw pitch caliper with a Boxford dial gauge, stored in a wooden case.
Details
- Category:
- Industrial Metrology
- Object Number:
- 1983-392
- Materials:
- steel
- Measurements:
-
overall: 3.937 x 7.874 x 2.9528 in.; 10 x 20 x 7.5 cm
- type:
- caliper
- credit:
- National Physical Laboratory.