Marey sphygmograph and case

Dr. Bloch's sphygmometer with Dr. Cheron's scale

Tambour from a sphygmograph

Franck exciter for attaching to the skull of dogs, Paris, France, 1888-1890

Marey's cogwheel interrupter

Bloch's pneumoscope

Marey's force measuring apparatus c. 1900

Bloch type sphygmomanometer, Paris, France, 1881-1913

Potain type sphygmomanometer, Paris, France, 1898-1910

Medical diapason mounted for electrical use

'Frog-pistol', 1904-1910.

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