


Dudgeon sphygmograph by Maw
1870-1901

Dudgeon sphygmograph

Marey sphygmograph with unusual pressure adjustment based on rack mechanism
1880-1930

Dudgeon sphygmograph by Krohne and Sesemann

Dudgeon sphygmograph

Marey sphygmograph, Mahomed's modification
1873-1900

Russell urine test case

Granville type sphygmograph, London, England, 1885-1900
1885-1900

Marey sphygmograph
1872-1900

Leather surgical instrument case
Early type of Richardson sphygmograph
circa 1883
Marey sphygmograph
1872
Cut-throat razor
1840-1900
Set of ten dental forceps and seven dental elevators
1870-1910