Dudgeon's sphygmograph

Dudgeon's sphygmograph Dudgeon's sphygmograph

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Science Museum Group
© The Board of Trustees of the Science Musuem

Dudgeon's sphygmograph
Science Museum Group
© The Board of Trustees of the Science Musuem

Dudgeon's sphygmograph, metal, made by Mayer, London, in leather case by Mayer and Phelps, London, instrument inscribed, "S.M.H. Victoria", English, 1901-1920

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