Torpedoman (TM) Challenge Coin Pin Beanie Our Columbia class coin is

Our Columbia class coin is not only representative of the US Navy's latest submarine class and replacement for the Ohio class ballistic missile submarine (the most important part of the US's nuclear triad)

This challenge coin represents the many hours of training with computers

A skeleton dons a pair of sound powered phones with a torpedo and Tomahawk land attack missle behind his head on a background of blue

The back has the pins/frogs

Torpedoman (TM) Challenge Coin Pin Beanie Our Columbia class coin isSubMerch has a TM rating pin in a classic dolphins shape, but with sharks flanking a WWII diesel boat on the front. The back has the pins frogs. 3. 0" x 1".