Blundell Rules Limited slide rule

Made:
1955-1965 in England

Blundell Rules Limited (B.R.L.) P15 (5-inch) slide rule with leather sleeve

Details

Category:
Mathematics
Object Number:
1998-423
Materials:
plastic, leather and complete
Measurements:
overall: 5 x 175 x 50 mm
type:
slide rule
credit:
Mr J.C. Michie