《元史·列传·卷九十》
拱统帅顺天、河间的甲匠，提前完成任务。而且样子都呈虎豹异兽的形状，制法各不相同，但都能合帝的要求。
拱董顺天、河间甲匠，先期毕工，且象虎豹异兽之形，各殊其制，皆称旨。
Gong led the armor craftsmen in Shuntian and Hejian to complete the task ahead of time. Moreover, they were all shaped like tigers, leopards, and strange beasts, and the methods of making them were different, but they could all meet the emperor's requirements.