Compound microscope by Leitz,
manufacturing date September 1880 (from Leitz archive)

Signed: E. Leitz Wetzlar N° 3962

The stand is a Type IIIa and has a horseshoe foot with a pillar. The plano-concave mirror can be oriented by mean of an arm and can be rotated by a knob. The single stop can be inserted into the slide. An arm sustains the tube; coarse focus is done by moving the tube within its sleeve, fine focus by a knob on the pillar.
There one objective signed: 3; one eypiece. No case is present.
The book in the background is: Ernst Leitz Optische Werke - Wetzlar 1849-1949, Erster and Zweiter Teil, Umschau Verlag, 1949.