Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Disk
"Gilson Atlas, Type III (Post 1465)"
GilsonUSA
Aluminum
"c 1931, 1930's to 1960"1188 cm"Multiplication, division, trig"

Notes: "Also called Atlas, Dia = 21.1 cm, trig scales on the reverse, alternatind decades marked in yellow "


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