American made microscope on a double pillar and rotating base

Most likely made by an amateur, c. 1885

American made microscope on a double pillar and rotating base

American made microscope on a double pillar and rotating base

American made microscope on a double pillar and rotating base

American made microscope on a double pillar and rotating base

American made microscope on a double pillar and rotating base American made microscope on a double pillar and rotating base

 

This unsigned instrument turned up at an estate sale in Illinois. The microscope bears an number of features that strongly suggest that it is American made. In particular, the maker has borrowed ideas incorporated in the post-1876 microscopes made by Joseph Zentmayer of Philadelphia. These include the swinging sub-stage, rotation of the body above the tripod base, and the lever mechanism of the fine focus adjustment. However, the quality of the construction is not of the same caliber as found on Zentmayer microscopes or those of the other established makers suggesting that this is the work of an amateur with some talent.

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