Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Circular and Spiral Slide Rules
LOGA / Topo - Version 3
Loga Calculator A.G
Switzerland
Metal/paper
1935-1945
Ø 12.5 cm
Military Artillery

Notes: Serial No. 1054 exclusively made for Swiss Army for artillery based azimuth calculations - two inner scales on front calibrated for 6400 A ? or NATO Mils (A ? = 2 x 3200).


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Image 5