Haemacytometer, Thoma, in leather case, by Carl Zeiss of Jena, German, 19th century Haemacytometer, Thoma, in leather case 1801-1900
Haemacytometer, in leather case, by Carl Zeiss of Jena, from Dr. Pringle of Penge, German, 19th century Haemacytometer, in leather case 1801-1900
Haemacytometer, Tiefe, in leather case, by Carl Zeiss of Jena, from Dr. Pringle of Penge, German, 19th century Haemacytometer, Tiefe, in leather case 1801-1900
