E. Hartnack, sucr. G.Oberhaeuser, Place Dauphene 21, Paris. #4684. Drum microscope.

E. Hartnack, sucr. G. Oberhaeuser, Place Dauphene 21, Paris. #4684

Small drum microscope c.1863

E. Hartnack, sucr. G. Oberhaeuser, Place Dauphene 21, Paris. #4684

E. Hartnack, sucr. G. Oberhaeuser, Place Dauphene 21, Paris. #4684. Drum microscope c.1863