https://www.imes.boj.or.jp/cm/english/collection/photobook/
Libreto informativo completo en línea
https://www.imes.boj.or.jp/cm/english/
PDFs descargables
https://www.imes.boj.or.jp/cm/english/collection/photobook/index.html
Enlace al Museo
https://en.wikipedia.org/wiki/Currency_Museum_of_the_Bank_of_Japan
https://www.boj.or.jp/en/announcements/education/data/boj_pamphlet.pdf
http://www.imperio-numismatico.com/t119222-1-bu-gin-de-la-era-tenpo-del-japon#1067698
https://www.imes.boj.or.jp/cm/english/collection/senpeikan_e.pdf
Impresinante colección del British Museum
https://www.britishmuseum.org/pdf/Catalogue%20of%20the%20Japanese%20Coin%20Collection.pdf
https://www.sixbid.com/browse.html?auction=4530
https://www.shakaika.jp/blog/9882/zouheikyoku_tokyo/
moneditis real deaocho 