J. Zentmayer Philadelphia

The Grand American model microscopes

binocular: No. 330, monocular No. 14

Grand American

The Grand American model microscope above with serial No. 14 is among the earliest surviving Zentmayer microscopes. c. 1860

See this article from: Proceedings of the American Microscopical Society. Vol. 14, No. 3, 1893.

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