Now available on our store ACOS COSMOCORD MI.... Check it out here http://mullard.org/products/rare-vintage-bakelite-cosmo… | Vintage bakelite, Bakelite, Microphone
Miniature Radio In Snuff Tin With Acos Microphone Ear Bud – Mullard Antiques and Collectibles
VINTAGE ACOS MICROPHONE. TYPE MIC.33-1 | eBay
European microphones
VINTAGE ACOS HIGH FIDELITY MICROPHONE | #424443575
A Vintage Cosmocord Acos Mic 33-1 Crystal Hand or Desk Microphone in Box c.1950 | #1776571567