This was the first time a submarine flew the Jolly Roger flag, but it wouldn't ... is commonly seen returning to port flying ...

so the collection of flags flown from the top of the conning tower soon became numerous, so that practice was swapped – with a submarine flying one single large Jolly Roger flag, with symbols ...

Jolly Rogers in One Piece symbolizes a ... under the protection of a certain crew. For example, the flying of the Big Mom pirate flag over Fishman Island illustrates this point, as was seen ...