元代至正通宝一对，包括小平背巳折三背巳，分别评中乾真品及82，至正通宝由元朝末年的第20代蒙古大汗妥坤帖木儿於公元 1333-1370 年（北元 1368-70 年）在同名时期发行。China: Yuan Dynsaty, Zhi Zheng Tong Bao, lot of 2 coins, (1271-1368), 1 cash, 25.4x1.2mm, 3.2g and 3 cash, 33.7x2.2mm, 9.9g, both coins rev: Si in Phags-pa script, Zhong Qian Genuine and 82 respectively. Zhi Zheng Tong Bao was issued during the era of the same name (1341-1370) by Toghon Temur, r.1333-1370 (1368-70 as Northern Yuan) in the waning years of the Yuan Dynasty. . (2). [154, 153]
