Drum microscope, with superstage condenser, English, second half of 19th century Drum microscope 1851-1900
Drum microscope with pasteboard tubes, similar to Nuremberg microscopes, Continental, possibly Italian, circa 1800 Drum microscope with pasteboard tubes 1780-1820
Stand and body tube of unsigned drum microscope, French, mid 19th century Stand and body tube of unsigned drum microscope 1850-1875
Unsigned down microscope, with accessories in case requiring glueing, English, mid 19th century Unsigned down microscope 1831-1860