F. Koristka, Milano #6827

Large Continental Microscope c. 1900

(Microscopio Grande Modello IIa)

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900. Substage

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900. Stored in the wood case.

F. Koristka, Milano #6827. Large Continental Microscope, c. 1900. Case and accessories

The microscope is equipped with eyepieces numbered 2, 4, and 8, objectives 3, 5, 8*, 7*, and 1/15 semi-apo immersion, a triple objective changer, an Abbe condenser with iris, and an aperture stop holder with three stops.

Koristka microscope advertisment from1900

A F. Koristka advertisement from 1900.

F. Koristka Milano

Except for the mechanism for focusing the substage, this microscope is similar to the large model IIa offered in the 1905 Koristka catalog.

F. Koristka IIa microscope.jpg


The microscope was purchased from a member of the family of the original owner who inherited it from his father, Dr. Renzo G. Olivetti (1907-1987), a physician who practiced medicine in Torino (Turin) Italy. Given the vintage of the microscope, c. 1900, it is most likely that the original owner was the grandfather, Dr. Bonaiuto Olivetti (1867-1941), who also had a medical practice in Torino. Some references by and about Dr. Bonaiuto Olivetti are available from Google books. From these references, it would seem that he specialized in gastroenterology.

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