The Kriegsmarine gas mask microphone is one of the rarest pieces of Kriegsmarine communications equipment, especially if it still comes with its original aluminum case. These could be attached to the mask while preserving airtightness. The microphone case is marked with the same style of MWaA mark found on some gas mask cans: an eagle and M inside a square stamped on the lid. Owners’ identification painted in yellow on the microphone.
