I used to have one. Dunno where it went.
I just brought mine back from San Diego along with all the various challenge coins I got over the years. The tuit was from the machinist who replaced our propeller shafts in Bahrain back in 1989. It was one of those jobs left over from ages in the past and for some reason the powers that be decided it needed to be done at that particular moment. He was by himself and he trued one of the shafts from either the Dash or the Detector using nothing but a hammer. Damned good at his job. From start to finish it took a week using 30 year old propeller shafts from a boat decommissioned years earlier.
I'm with Buck.