Marey sphygmograph and case

1857-1870

Dudgeon sphygmograph

Dudgeon sphygmograph by Krohne and Sesemann

Marey sphygmograph, Mahomed's modification

1873-1900

Dudgeon sphygmograph

Boulitte sphygmograph no.11867 with leather arm-strap

1880-1930

Dudgeon's sphygmograph

1901-1920

Dudgeon sphygmograph

Dudgeon sphygmograph by Millikin and Down

1876-1890

Dudgeon sphygmograph by Maw

1870-1901

Dudgeon sphygmograph

Cased Marey sphymograph

1885-1910

Part of sphygmograph

1890-1910

Dudgeon sphygmograph by E. Hymans

1885-1930

Jacquar sphygmograph in case

Sphygmograph by G. Boulitte

Tambour from a sphygmograph

Marey sphygmograph

1872-1900

Ludwig sphygmograph by Petzold, Leipzig

Sphygmograph, case only

1801-1900

Marey Sphygmograph

1872-1901

Broodlindt type sphygmograph

1885-1930

Dudgeon sphygmograph

Early type of Richardson sphygmograph

circa 1883

Dudgeon sphygmograph by Mayer and Meltzer

Dudgeon sphygmograph

Dudgeon sphygmograph by Krohne and Sesemann

1870-1900

Richardson sphygmograph (modified Dudgeon) c.1906

1901-1910

Part of a Sphygmograph(?) gilt brass and nickel pl

1880-1920