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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
FOW075Pocket
2MTC1
Fowler's Textile Conversion CalculatorFowler & Co.UKPressed metal"2-1/2"c. 1935-1937
C5

Notes: Textile calculator that calculates weight per length or weight per area. Has fixed outer scale for length and width and moveable scale for weight. Reverse has a table of instruction for setting the calculator to read a parameter based on given parameter. Missing loop.

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