Combined navigational protractor and parallel rule, 1944-1970

Made:
1944-1970 in London
designer:
Howard Douglas
maker:
L N P Manufacturing Company Limited

Combined protractor and parallel rule for navigational use, designed by H. Douglas and made by the London Name Plate Manufacturing. Co. Ltd., 35 Victoria Street, London S.W.1, 1944-1970

Details

Category:
Mathematics
Object Number:
1986-1377
type:
drawing instruments, combined scale protractors and parallel rules
credit:
Mr B. Vosburgh