Dynamometer(?), plated metal, by Hawksley of Londo

Made:
1901-1930 in London
maker:
Hawksley and Sons Limited
Dynamometer(?), plated metal, by Hawksley of London

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Dynamometer(?), plated metal, by Hawksley of London
Science Museum Group
© The Board of Trustees of the Science Museum

Dynamometer(?), plated metal, by Hawksley of London, early 20th century, in leatherette case