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Leitz 4mm Apochromat
Title: Leitz 4mm Apochromat
Identifier: LL02.48.06.32   (https://digital.lib.ecu.edu/22079)
Description: This lens came with the Leitz Ia microscope, G27. It is almost an exact copy of the Zeiss lens, A20, invented by Ernst Abbe’ for Zeiss in 1888. Abbe’ never patented his inventions, so many were quickly copied by competitors.

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