《明史·列传·卷一百零八》
内府的工匠，隆庆初年人数达到一万五千八百人，不久淘汰了两千五百人，但是宦官却不断增加。
内府工匠，隆庆初数至万五千八百人，寻汰二千五百人，而中官滥增不已。
In the early years of the Longqing Emperor, the number of craftsmen in the Imperial Household reached 15,800, and soon 2,500 were eliminated, but the number of eunuchs continued to increase.