The last photo of Hertel & Reuss 50x microscope objective, vintage - Mikroskopteil

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Hertel & Reuss 50x microscope objective, vintage

(Hertel & Reuss 50x vintage microscope objective)

Hertel & Reuss 50x microscope objective, vintage - different 3 view — Photo 3 – Hertel & Reuss 50x microscope objective, vintage