Thornton P.I.C. No.5200/18B (10-inch) slide rule b

Made:
1950-1960 in England
maker:
A G Thornton Limited

Thornton P.I.C. No.5200/18B (10-inch) slide rule by A.G. Thornton Limited with cardboard case

Details

Category:
Mathematics
Object Number:
1998-433
Materials:
complete, plastic and wood
type:
slide rule
credit:
Mr J.C. Michie