Thornton P.I.C. No.5200/18B slide rule

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:
plastic, wood and complete
Measurements:
overall: 12 x 310 x 50 mm
type:
slide rule
credit:
Mr J.C. Michie