Blundell Rules Limited (B.R.L.) P15 (5-inch) slide

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:
complete, leather and plastic
type:
slide rule
credit:
Mr J.C. Michie