Sigma Instruments thickness gauge

Made:
1951 in Letchworth

Sigma Instruments thickness gauge, 1951 stored in a box and fitted with a inspection fitting for measuring screw thread acceptibility. Purchased from Plessey Records in 1951.

Details

Category:
Industrial Metrology
Object Number:
1982-918
type:
mechanical comparator
credit:
Gift of Nottingham City Museums & Galleries
status:
Permanent collection

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