C. Kellner's nachfolger, FR. Belthle in Wetzlar, No. 945, c. 1866
(Objectives signed Belthle & Leitz)
The microscope was found with three eyepieces numbered I, III, and V and four objectives; the number 1 is signed " B.L.", the numbers 3 and 7 are signed "Belthle & Leitz", and the number 4 is unsigned.
This is an example of the small sized model produced by the firm corresponding to the model 3. See: Fr. Belthle, Nachfolger von C. Kellner, in Wetzlar- Price list for 1866.
Represented in this collection is another example of this model having a different selection of optics and a different layout within the wood storage case.
Unfortunately, the production archives retained by Leica Microsystems GmbH of microscopes made in the early period of the Optical Institute in Wetzlar do not have an entry for this microscope and therefore the original purchaser will remain unknown. It was purchased for this collection in the USA.
For more information about this microscope and related instruments see the article:
Some Early Microscopes from the Optical Institute in Wetzlar
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