Screw pitch measuring machine 3"x7". Designed by N

Made:
1942 in Broughton
designer:
National Physical Laboratory
and
National Physical Laboratory
and
maker:
George Cussons Limited

Screw pitch measuring machine 3"x7". Designed by N.P.L. and made by G. Cussons Ltd in 1942. Complete with R7/8" standard thread test piece

Details

Category:
Industrial Metrology
Object Number:
1993-1534
type:
screw pitch measuring machine
credit:
Royal Military College of Science