coinage was inspired by the Tang coinage (唐銭) named Kaigen Tsūhō (Chinese: 開元通宝, Kai Yuan Tong Bao), first minted in Chang'an in 621 CE. The Wadokaichin had
producing the coin in 1636 (Kan'ei 15). Click to enlarge Cocolog 雑記@史華堂 「中山通宝」について. (in Japanese) Published: 8 February 2013 Retrieved: 9 June 2017. (日本銀行)
造假者最善于浑水摸鱼,他们利用辽钱铸造技术粗糙,拙而不秀的特点,以及《辽史》记载上的简陋、缺失以及相互矛盾之处,伪造了早期的年号钱。更有甚者干脆补铸齐了所有年号的金银铜三种材质的钱币。 "天朝万顺(契丹文)". Shanghai Museum (in Chinese). 上海博物馆. 2015. "Chinese