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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
"Spectro-Rule, catalog #440 (v1)"
"Somar Laboratories, Inc"
"New York, U.S.A."
Plastic
c. 1968
8.9 cm x 45.6 cm
Chemistry / Physics
Notes:
Calculations for X-Ray Spectroscopy with a table of to elements up to number 100
Image 1
Image 2