Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Linear
"Spectro-Rule, catalog #440 (v1)"
"Somar Laboratories, Inc""New York, U.S.A."
Plastic
c. 19688.9 cm x 45.6 cmChemistry / Physics

Notes: Calculations for X-Ray Spectroscopy with a table of to elements up to number 100


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