Simple viewer in leather case
1900-1920
Simple viewer, Continental, mid 19th century
1830-1870
Viewer, thick lens set in cork
1871-1900
Solar microscope with screwbarrel objective
1760-1780
Viewer, thick lens set in cork
1871-1900
Live box English, 1850-1870
1850-1870
Screwbarrel microscope
1740-1770
Screwbarrel microscope in case
1750-1800
Aquatic and rackbarrel microscope in fishskin case
1800-1830
Solar Microscope, 1616-1856
1818-1856
Cylinder with concave lens set at one end
1850-1900
Solar microscope in case
1788-1796
Compass and screwbarrel microscopes in fishskin case
1740-1770
Screwbarrel microscope with ivory handle
1720-1760
Screwbarrel microscope in fishskin case
1730-1770
Optical part of projection microscope
1871-1900
Viewer with bead lens set at top of cylinder
1840-1870
Simple viewer, English, 19th century
1801-1900
Viewer convex lens in cylinder plate with rectangular window
1851-1900
Solar microscope in case
1840-1855
Part of projection microscope
1850-1900
Screwbarrel microscope in fishskin case
1770-1800
Screwbarrel microscope in case
1750-1800
English screwbarrel microscope in fishskin case
1730-1770
Solar microscope by Passemant
1760-1780
Solar microscope
1775-1795
Screwbarrel microscope in fishskin case
1751-1800
Screwbarrel microscope in brown leather case
1771-1800
Solar microscope with sprung stage on two pillars
1790-1820
Microscope aperture disc with four windows to fit substage on large stand
1830-1900
Double barrelled air pump
1801-1900
Solar microscope in mahogany case with accessories by G. and C. Dixey
1830-1840
Solar microscope
1800-1825
Screwbarrel microscope in fish skin case
1771-1800
Screwbarrel microscope in fishskin case
1700-1730
Unsigned solar microscope with rackbarrel onjective
1730-1770
Unsigned French solar microscope in case
Screwbarrel microscope in red leather covered case
1790-1810
Screwbarrel microscope in fishskin case
1750-1800
Solar microscope with screwbarrel
1750-1775
Cylinder, screen and mirror of solar microscope
1801-1830
Microscope compendium with solar microscope
1751-1780
Screwbarrel microscope in fishskin case
1730-1770
Screwbarrel microscope in case
1740-1770
Screwbarrel microscope with ivory handle
1730-1770
Screwbarrel microscope in fishskin case
1751-1800
Screwbarrel microscope in fishskin case
1731-1770
Optical part of solar microscope (screen and mirror missing)
1750-1775
Solar microscope by W and S Jones
1801-1830
Solar microscope with rack barrel objective
1800-1825