Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Disk
"Gilson Atlas, Type III"
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"


Image 1




Image 2