Dissecting microscope by Bausch and Lomb
1875-1900
1875-1900
1871-1900
1920-1965
1851-1900
1860-1900
1867-1882
1901-1930
1850
1870-1875
1840-1849
1865-1875
1871-1900
1871-1900
1870-1900
1850-1875
1871-1900
1870-1875
1851-1900
1851-1880
1875-1879