


2 electrodes in test tubes, European, 1900-1910
1900-1910

Urinometer with test tube in cylindrical cardboard case
1830-1900

Two test tubes inside cylindrical leather case
1851-1900

Acufirm lumbar puncture set
1930-1943

Set of 6 test tubes
Haemaglobinometer; Germany
1890-1930
Test tube with suction holder
Test tube with suction holder
Sahli(?) haemaglobinometer set in leatherette case
Glass bottle which contains a test-tube full of ammonium tartrate crystals prepared by fermentation of the racemate
1855-1860