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Item#TypeModel No.ScalesModel NameMakerCountrySerial No.Case MaterialLenght Open (Closed)DateCondition
411 / 412Otis King's Patent Calculator"Carbic, Ltd. "UK5318Nickel Plated Brass"10-3/4" (6-1/2")"1923

Notes: "Top cap has triangle shaped chain loop. Scale set is first version of model L scales and are white on black. Carbic Ltd. address at 51 Holborn Viaduct, London."

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