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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
"Gilson Atlas, Type III (Post 1465)"
Gilson
USA
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 "
Image 1
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Image 4