Asymmetry Media - Fun story: I found this microphone while cleaning out my old garbage. It is a Beyer Dynamic M81 that my grandfather used to use as a microphone when he
User reviews: Beyerdynamic M 810 - Audiofanzine
Micro beyer dynamic m81 in box vintage à Fleury Mérogis | Clasf image-video
M81 beyerdynamic
Beyerdynamic M81 dynamic Microphone | eBay
Stream Speech Beyerdynamic M81 by Ollegadse | Listen online for free on SoundCloud