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Haematocytometer, in case
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Thoma-Hawksley haemacytometer
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Thoma haemacytometer set, c.1882
1882-1890
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Fuchs-Rosenthal haemacytometer
Haemacytometer, Thoma, in leather case
1845-1900
Haemacytometer, Thoma, in leather case
1801-1900
Haemacytometer, in leather case
1801-1900
Leatherette case for Thoma haemacytometer
1891-1930
Burker haemacytometer, by Leitz, in case, with accessories, early 20th century
1901-1930
Haemacytometer, in leather case
1801-1900
Thoma haemacytometer
1871-1920