大蜀通寶 (Da Shu Tong Bao), 25mm, 1mm, Trace of Silver found, Later Shu Kingdom (926-965), The Five Dynasties and Ten Kingdoms, Very RARE if Genuine. “大蜀通寶”爲五代十國後蜀高祖孟昶（孟知祥）廣政年間（934-965年）所鑄，銅質，尚有鎏銀痕跡，真品存世極罕。