Thornton P.I.C. No.171/PC17 slide rule

Thornton P.I.C. No.171/PC17 (10-inch) slide rule by A.G. Thornton Limited with cardboard case

Details

Category:
Mathematics
Object Number:
1998-432
Materials:
plastic and complete
Measurements:
overall: 8 x 310 x 40 mm
type:
slide rule
credit:
Mr J.C. Michie