"The submarine L1, a veteran of the First World War, launched by Vickers of Barrow in 1917, drifted ashore at Penanwell Cove after breaking tow while bound from Chatham to Newport for scrapping." from Cornish Shipwrecks, North Coast by Clive Carter.
The Lutria was abandoned 62.5 miles S.W. of Bishops Rock. Master Capt. Duamantaras. Crew of 28 rescued by 2 of their own boats, including 2 Sea Kings and West German helicopters.
ref. W.M News. 12/02/72