A Jolly Roger, also known as a Skull Mark (ドクロのマーク, Dokuro no Māku?, often shortened to simply Mark or Skull) or a Symbol (印（シンボル）, Shinboru?),[citation needed] is the primary emblem of a pirate crew. It exists in countless variations across the world, distinguishing hundreds—if not thousands—of different crews as well as their respective property, ships, and territories. The basic Jolly Roger consists of a human skull on top of a pair of "crossbones" intersecting at diagonal angles. This…