early examples of the symbol are present in the royal arms ascribed to the king of mann in several late 13th century armorials. the "tre cassyn" also appears on the manx sword of state, which is popularly said to date to the time of king amlaíb mac gofraid (d. 1237), although recent analysis has shown it more likely dates to about the 15th century. another example can be seen on a 14th-century stone cross in the churchyard of maughold. another is example is a late 14th century seal of sir william le scrope, lord of mann, in which the "tre cassyn" are depicted in plate armour, rather than mail. early representations of the "tre cassyn" show the legs running clockwise, and later representations show the legs running in both directions.