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Slide Adding Machines (addiators) Fractometer

Slide Adding Machines (addiators) Fractometer Cash Register, Adding Machines photo   Category : Mercantile, Trades & Factories > Cash Register, Adding Machines
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Uploaded by elle-gayday on Dec 6, 2016
        
Known Information
Category : Mercantile, Trades & Factories > Cash Register, Adding MachinesItem Id: 175519
More info
Weight12oz (340g)
9 columns for Feet, Inches and Sixteenths
This "Fractomator" is a larger 9-column duplex Addiator calibrated in Feet (decimal), Inches (base 12), and Sixteenths
The colour coding suggests that the decimal columns would also have been used for currency calculations
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