On 20 December 1971, Balao-class submarine USS Lionfish AGSS-298 was struck from the Naval Vessel Register
USS Lionfish SS298 at Battleship Cove, Fall River, MA
MuseumShip Blog
On 20 December 1890, steam coaster SS Robin commenced her career in the British coastal service at Liverpool, with a crew of 12 for her maiden voyage.
The SS Robin Trust, London, UK
On 20 December 1971, Tench-class submarine USS Requin SS-481 was struck form the Naval Vessel Register.
Carnegie Science Center, Pittsburgh, PA
On 20 December 1989, Lightship Huron (LV-103) became a National Historic Landmark.
Port Huron Museums, MI
On 20 December 1971, Gato-class submarine USS Croaker SS-246 was struck from the Naval Vessel Register.
Buffalo and Erie County Naval and Military Park, Buffalo, NY
80 years ago today, on 20 December 1944, USCGC Mackinaw - WAGB-83 (based on the Wind class of Coast Guard icebreakers) was commissioned with Cmdr Edwin J. Roland in command.
Icebreaker Mackinaw Maritime Museum, Mackinaw City, MI





