Allen posted a picture to Twitter showing World War II ship 's rusting bow . Musashi , the Japanese Navy 's biggest battleship , was sunk in 1944 . It lay undiscovered on the floor of Sibuyan Sea for the past 70 years . Billionaire Allen has now used his personal submarine to find the ship . Discovery brings to an end Allen 's eight year search for the Musashi .
Allen posted a picture to Twitter showing World War II ship 's rusting bow . Musashi , the Japanese Navy 's biggest battleship , was sunk in 1944 . It lay undiscovered on the floor of the Sibuyan Sea for the past 70 years . Billionaire Allen has now used his personal submarine to find the ship . Discovery brings to an end Allen 's eight year search for the Musashi .