Indiana Jones and the Last Crusade Easter Egg - Barrels of "Carboneto"

In the stormy scene on the ship, Indiana Jones is approached by the villain who has kept the Cross of Coronado for years. As the villain comes toward him he walks alongside a stack of steel drums. Lightning momentarily illuminates the drums, showing their labels-- carboneto. (In reference to the carbonite-frozen Han Solo/Harrison Ford in The Empire Strikes Back).