Is your Mark V helmet missing the speaker or transceiver? This is a never used example still in the M&E Marine Supply Company packaging. M&E was a large mail order business for diving equipment after World War 2. They purchased huge amounts of surplus equipment for the US Government. Today their original catalogs are great reference material. This speaker is just like new and in the package just as it hung in their retail shop.

All items will be shipped with a signature required upon delivery and full insurance either via FedEx or the USPS. Worldwide shipping available. A shipping quote prior to the auction can be provided by emailing your postal code.