The two CMV 3 microphones ser no's 242 and 265 were manufactured by Georg Neumann -Berlin SO16. From the information got from Germany they were manufactured in 1928 or 1929.
They are in original condition and in what looks like there own boxes. One has a damaged microphone screen but no other physical damage.
This type of microphone can be seen very often in German newsreels of the late 20’s onwards used by all of the high command including Hitler
