Combined navigational protractor and parallel rule, 1944-1970

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

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:
parallel rules
credit:
Mr B. Vosburgh

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