442. U.S. Steelyard Scale. Hanging type. Brass. 6-1/4" long. Beam calibrated in oz. (0-8, 16). Fixed counterpoise at one end, hanging spring letter clasp at other. Metal slide attached to beam and suspended from hanger indicates point of equilibrium. Postal rates inscribed on back of beam. Markings: "Handy Postal Scales Pat. No. 373269." Signed: "Maasstrone Mfg. Co., Battle Creek, Michigan."