Glass haemocytometer designed by Thoma, from the portable laboratory owned by Dr. H.G Butterfield, by Hawksley, London, England, 1930-1940 Glass haemocytometer designed by Thoma 1930-1940
Glass haemocytometer, from the portable laboratory owned by Dr. H.G Butterfield, E. Leitz, Wetzlar, Germany, 1930-1940 Glass haemocytometer 1930-1940
Thoma Zeiss haemocytometer with pipettes, by Bausch and Lomb Thoma Zeiss haemocytometer with pipettes 1900-1980
Haemocytometer used in the examination of tissue cultures at the Common Cold Research Unit Haemocytometer
Thoma's haemacytometer, cased, by C. Zeiss, German Thoma's haemacytometer, cased, by C. Zeiss, German