SENNHEISER MD21 German Vintage Omni Microphone MD-21+CBL XLR #31200 | eBay
MD 21 U - Sennheiser MD 21 U - Audiofanzine
Stream 2. Vintage Microphone Recording. 1961 Sennheiser MD21. Drum overhead and also on Guitar by Martin Mitchell | Listen online for free on SoundCloud