Zeiss Radial Triangulator Instructions for Use 1930
SKU
BR5716/Zeiss Radial Triangulator Manual
Very Good Condition. 8 pages, Bms 13 engl. Carl Zeiss Jena 1930.The radial triangulator is an instrument for measuring the polar co-ordinates of points, and serves specially to measure directions in triangulation by means of air-photographs.