Marey sphygmograph, Mahomed's modification
1873-1900
Dudgeon sphygmograph
Dudgeon sphygmograph
Dudgeon sphygmograph by Maw
1870-1901
Marey sphygmograph with unusual pressure adjustment based on rack mechanism
1880-1930
Von Basch sphygmomanometer
Marey sphygmograph
1872-1900
Russell urine test case
Leather surgical instrument case
Granville type sphygmograph, London, England, 1885-1900
1885-1900
Marey sphygmograph
1872
Early type of Richardson sphygmograph
circa 1883
Cut-throat razor
1840-1900
Set of ten dental forceps and seven dental elevators
1870-1910