A brass tag on the white-glazed metal case reads “THE TORSION BALANCE CO. / STYLE 4551 NO. B951604 / CAPACITY 200 GRM MADE IN U.S.A.” The double linear scale in front, between the pans, is graduated in grains and milligrams. The firm described this style as a “Chemical and Laboratory Scale.”
Ref: The Torsion Balance Co., Catalogue 38 (New York, 1934), p. 13.
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