During the Ming dynasty the emperor equipped the Dong Chang (a domestic spy apparatus, run by eunuchs and relied upon heavily by the Ming court) with Wu Hooks, prompting people at that time to refer to the weapon as "the royal saber of the Dong Chang."
可知其刀制極佳，傳至明朝，皇帝以此刀賜東廠，時稱「東廠御賜寶刀」。