Redfin (SS-272) with the Grampus (SS-523) and other subs alongside AS-18 Orion was taken between 1953-55. The "Nodding idiot" on Redfin was converted to the electronic version in 1956. The other 3 boats are from outboard in Migraine II Requin (SS-481) and Migraine I Burrfish (SS-312) and Tigrone (SS-419). The order of the last 2 might be reversed.