Archive
of
Collections
Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk/Plate
"Gilson Atlas, Type I, Version II"
Gilson
USA
Aluminum
"patent 1, 17, 1922"
1402 cm
Multiplication and division
Notes:
"Called the ""Square Atlas"" one 76 cm ""C"" scale and one2,164 cm spiral scale, printed on a 25 x 25 cm square AL sheet, one side only"
Image 1
Image 2
