Piece 28

Small field microscope c. 1870.

This small field microscope is very similar to the previous one in size and structure. However, it has in its middle part a rotating reflection mirror that facilitates the illumination of the object to be observed from the top. The role of the bottom opening and its thick magnifying glass is not understood.

Small field microscope c. 1870.

Barrel microscope. Lerebours & Secrétan. Paris. c. 1840.

Compound monocular microscope. Voigtländer. Germany from 1908-1920.

Simple monocular microscope. W. Johnson. London 1860. Model “Society of the Arts”.

“Crouch Premium” Binocular Microscope. Henry Crouch. London. 1870.