Compound monocular microscope by Sidle and Poalk
1871-1900
1871-1900
1875-1900
1876-1889
1831-1870
1890-1900
1771-1800
1885-1900
1875-1900
1731-1770
1858-1862
1880-1870
1850-1900
1858-1860
1850-1860
1850-1875
1862-1866
1825-1850
1855-1865