Objective lens and eyepiece, by E. Hartnack et Cie, Place Dauphine 21, Paris, France, 1871-1900. Objective lens and eyepiece 1871-1900
E. Leitz microscope eyepiece lens (8x magnification) in cardboard tube, Weizlar Germany, owned by Dr. June Almeida (1930-2007), virologist and pioneering electron microscopist. Microscope eyepiece owned by Dr. June Almeida (1930-2007) c.1920