Toy viewer with single lens and small diagrams on roll
1890-1920
Simple microscope adapted for viewing living opaque objects
1820
Toy microscope, Continental, 19th century
1801-1900
Simple Microscope, 1747-1784
1747-1784
Lens holder for low power work or dissection by Crouch
1871-1900
Folding hand microscope in case
1810-1830
Blackhall's simple microscope
1888
Simple hand or stand microscope
1770
Toy microscope, 1850-1900
1850-1900
E. Bryan Simple Microscope
1865-1875
Simple microscope
1910-1920
Microscope
1850-1900
Microscope
1895-1905