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Details and Image



Item#TypeModel No.ScalesModel NameMakerCountrySerial No.Case MaterialLenght Open (Closed)DateCondition
OTK102Cylindrical
K
423 / 414Otis King's Patent Calculator"Carbic, Ltd. "UKI067Nickel Plated Brass"10-3/4" (6-1/2")"1925
C5

Notes: Anomalous calculator. Serial number is clearly I067 with a bar under the number. It has a thicker top cap and a black indicator with large arrows. Scales may have been replaced as they are pristine. Perhaps it is an prototype of the first A serial number range.

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