Solar Microscope, 1616-1856
1818-1856
Solar Microscope with Reflective Disc and Diaphragm
Mann & Ayscough solar microscope
1743
Solar Microscope, 1775
1775
Solar microscope with sprung stage on two pillars
1790-1820
Unsigned solar microscope with worn worm drive for heliostat and rack barrel focusing
1801-1900