Heavy Duty Metal Addiator/Fractometer for Linear Measurement Addition and Subtraction
£120
Country of manufacture
Germany
Description
Heavy duty German calculator for addition and subtraction of linear measure in feet and inches-heavy enamelled metal case in good working condition
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Dealer information
Fletcher
Fletcher Wallis
Fletcher Wallis sells objects and books relating to the history of science, medicine and technology from his unit at Admiral Vernon Arcade Portobello Road. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for thirty five years.
