
Binocular microscope with base and prism housing by C.D. Ahrens and Stephenson body tube by John Browning
1851-1900
1851-1900
1775-1800
1775-1795
1800-1825
1851-1900
1860-1880
1880-1900
1879-1900
1858-1862
1871-1900
1820-1850
1850-1900
1850-1870
1795-1820