The last photo of Leitz Dialux 20 microscope light collector lens and filter holder - Mikroskopteil

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Leitz Dialux 20 microscope - light collector lens and filter holder

(Leitz Dialux 20 microscope - light collector lens and filter holder)

Leitz Dialux 20 microscope - light collector lens and filter holder - different 5 view
Photo 5 – Leitz Dialux 20 microscope - light collector lens and filter holder