Furthermore, under the significant deviations from the face value since around Ansei era (1854 to 1859) in circulating the Kanei-tsuho do ichimonsen (copper Kanei-tsuho equivalent to one mon), the tetsu ichimonsen coins, and the shinchu shimonsen coins, and so on, the issuance of Bunkyu-eiho (a coin first minted in Bunkyu era [1854 to 1859]) brought the disorder of the exchange market; therefore in January 1863, the bakufu reordered to fix the rate of the Tenpo-tsuho by 100 mon, however, by reports that this rate was impossible and others, in June 1865, the Edo bakufu had to accept to circulate it by the fair market price not by the face value as follows with the standard of the tetsu ichimonsen coin equivalent to one mon and the Tenpo-tsuho equivalent to 100 mon:
また安政年間頃から寛永通寳銅一文銭、鉄一文銭、および真鍮四文銭などの通用において額面からの乖離が著しくなり、文久永宝の発行に至り相場は混乱し、文久2年（1862年）12月に幕府は改めて天保通寳を100文で通用させるよう通達を出したが、実際に100文銭としての通用は困難との申し出もあり、幕府は慶応元年（1865年）閏5月に、鉄一文銭＝1文および天保通寳＝100文の基準に対し以下のような増歩通用を認めざるを得なくなった。