BRITISH CALCULATORS

09-022A. THE BRITISH CALCULATOR (MODEL B) FOR COMPOUND ADDITION
English, circa 1950, engraved on the front "The British Calculator (MODEL B) FOR COMPOUND ADDITION, PATENT)." Made of black oxidized brass, 5 1/4" diameter x 3/8" thick, with 3 concentric wheels for adding pre-decimal English currency (pounds, shilling, & pence). This adder is in very good overall condition, with its original bone stylus, in its original plush-lined leatherette covered wood case.

Price...................................................$450

09-022B. BRI-CAL
English, circa 1950, engraved on the front "BRI-CAL Adding Machines." Made of black oxidized brass, 7 1/2" diameter x 3/8" thick, with 6 concentric wheels for adding pre-decimal English currency (pounds, shilling, & pence). This unusually large Bri-Cal adder is in very good overall condition, in its original well worn plush-lined leatherette covered wood case.

Price...................................................$650

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