Charles Chevalier, Ingenieur Opticien, Breveté, Palais Royal 163, Paris.Case-mounted drum microscope, c.1845

Charles Chevalier, Ingenieur Opticien, Breveté, Palais Royal 163, Paris

Case-mounted drum microscope, c.1845

Charles Chevalier, Ingenieur Optician Breveté, Paris Case-mounted drum microscope, c.1845

Divisible objective on a swivel mount

Small drum microscope. c. 1859

Case-mounted drum microscope, c.1845