The last photo of Hertel & Reuss 100x Oel immersion microscope objective, vintage - Mikroskopteil

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Hertel & Reuss 100x Oel immersion microscope objective, vintage

(Hertel & Reuss 100x Oel immersion vintage microscope objective)

Hertel & Reuss 100x Oel immersion microscope objective, vintage - different 5 view
Photo 5 – Hertel & Reuss 100x Oel immersion microscope objective, vintage