Haemacytometer, Thoma, in leather case, by Carl Zeiss of Jena, German, 19th century Haemacytometer, Thoma, in leather case 1845-1900
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
Burker haemacytometer, by Leitz, in case, early 20th century Burker haemacytometer, by Leitz, in case, with accessories, early 20th century 1901-1930
Thoma haemacytometer, with counting chamber, case and glass covers, made by E. Leitz, German, 1871-1920 Thoma haemacytometer 1871-1920
Haemacytometer, in leather case, by Hawksley and Sons Limited, 357 Oxford Street, London, England, 1801-1900. Haemacytometer, in leather case 1801-1900