Set of 18 plug gauges for Holtzapffel's screw threads
- Made:
- circa 1850 in London
- maker:
- Holtzapffel and Company
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Set of 18 plug gauges for Messrs. Holtzapffel's screw threads, sizes D to U. Made in London, c.1850.
Details
- Category:
- Industrial Metrology
- Object Number:
- 1999-190
- Measurements:
-
overall length of set: 157 mm
- type:
- gauges
- credit:
- purchased (Mrs S Davies)
