- Subject
- Microscopy
- Item type
- Object
- Provenance
- Lent by the Royal Microscopical Society in 1970.
- Primary inscriptions
- Unsigned
- Object type
- Microscope accessory
- Dimensions
- Weight: 236g
- Inventory No
- 14938
Description
RMS standard tap and die for objective screw threads, in case. The Royal Microscopical Society adopted these standards in 1859, having commissioned Richard Beck to devise a 'universal screw'. They are the oldest of the Society's standard gauges, and served until 1896.
Related Items
More related items
RMS Standard Objective Thread Die, by J. Whitworth, Manchester, 19th CenturyInventory Number 25537- Gauges for Objective Screw Threads?, by Whitworth, Manchester, 1897Inventory Number 35833
- RMS Standard Gauges in Case, 19th CenturyInventory Number 11086
Envelope for Standard RMS Screw and Chaser for Threading, by Whitworth?, Late 19th CenturyInventory Number 63522