Optics: glass tubes (right) and Leeuwenhoek's first microscope (left) Photograph.

1 print : photograph

A. Leeuwenhoeck's microscope, showing the side, front and back. The lens may be seen set in the board. B. Glass tubes which Leeuwenhoeck blew himself and used for examining the blood. Lettering is on a typed WMM label pasted on the verso of the mount

Wellcome Collection 47509i