"Rare Signature Microscope Compound Signed Jean And A Molteni Paris C 1856"
Rare straight compound microscope signature comprising of Jean and A. Molteni who worked at the 44 rue du Chateau d'eau sign in 1853-1856. The microscope has an articulated double, plane and concave mirror and a rotating diaphragm. Focusing by sliding tube and micrometer.