《明史·志·卷五十八》
宣德八年，礼部尚书胡淡职掌户部，提议每石减少十贯，而以十分为标准，七分折合成绢，绢一匹抵钞二百贯。
宣德八年，礼部尚书胡濙掌户部，议每石减十贯，而以十分为准，七分折绢，绢一匹抵钞二百贯。
In the eighth year of the Xuande reign, Hu Dan, Minister of the Ministry of Rites, took charge of the Ministry of Revenue and proposed that the number of banknotes per stone of rice be reduced by 10,000. He then proposed a standard where seven out of ten would be converted to silk (1 bolt being equivalent to 20,000 banknotes).