Sennheiser MD21 + Base Rare Vintage Microphone Mic Omni-Directional – Retro Gear Shop
Sennheiser MD 21 N Dynamic Omnidirectional Microphone Mic with XLRs - Vintage | eBay
Sennheiser MD21 (1953-onwards ) Fantastic drum overhead. Great on guitar cabs. | Martin Mitchell's Microphones
Stream 2. Vintage Microphone Recording. 1961 Sennheiser MD21. Drum overhead and also on Guitar by Martin Mitchell | Listen online for free on SoundCloud