My boat was the Greenfish SS-351. served on her 71 - 73. She was decommissioned in 1973 and sold to Brazil.
My hitch with the Cobia was '51-'52. She was decommissioned soon after and I thought she had gone to the breakers. Was astonished to find out in 2003 that she was in Wisconsin.
Paid her a visit and noticed she still had that diesel smell about her. Was sobering to see a boat you had served on being treated as a museum piece. :-)