Bull's eye condenser, European, late 19th century
1851-1900
Continental bull's eye condenser, 19th century
1801-1900
Dissecting microscope by Field and Co. of Birmingham
1870-1875
Withering botanic microscope (early type)
Botanic microscope folding into a leather case
1810-1830
Viewer with bead lens set at top of cylinder
1840-1870
Folding hand microscope in red leather box with hook to close
1820-1850
Folding hand microscope
1795-1840
Folding hand microscope
1840-1870
Folding hand microscope
1795-1840
Folding handmicroscope in red leather covered case
1840-1850
Folding hand microscope
1800-1830
Folding hand microscope in pasteboard case covered with black leather
1795-1840
Hand microscope
1790-1810
Folding hand microscope with lens missing
1795-1840
Folding hand microscope, English
1795-1840
Cased hand microscope, English, 19th century
1820-1830
Lens with lieberkuhn on handle
1801-1900
Simple viewer, English, mid 19th century
1840-1860
Folding hand microscope in pasteboard case covered with red leather
1801-1830
Simple viewer, cased, English, 1800-1850
1801-1850
Folding hand microscope in case covered with black paper
1795-1840
Folding hand microscope, English, circa 1825
1820-1830
Viewer, consisting of two glass discs to hold specimen
1801-1850
Bull's eye condenser, English, late 19th century
1851-1900