MKV US Navy Challenge Coin

'U.S.NAVY'  'THE ORIGINAL DEEP SEA' Dimensions:  (W)30mm x (H)48mm Weight: 26gms This is our best and very accurate shaped challenge coin representing the US MkV Helmet once used by the United States Military Divers. The reverse of coin displays the insignia worn by the US Navy Divers. Small variants in the color may occur.  Supplied in a protective PVC pouch  <><><><> Challenge coin: A small coin or medallion, bearing an organization's insignia or emblem and carried by the organization's members. Traditionally, they might be given to prove membership when challenged and to enhance morale. They are also collected by military & service members and law enforcement personnel. Modern challenge coins are made in a variety of sizes and are often made using popular culture references.  Historically, challenge coins were presented by unit commanders in recognition of special achievement by a member of the unit. They are also exchanged in recognition of vi