There are also some doubtful Ryogoku Kahei that are thought to have been created by someone in later generations, and such currencies are also listed on "Kingin Zuroku" (A Record of Gold and Silver in Picture), which was published in 1810.
また、領国貨幣の中には後世による創作によると考えられる素性の不確かな物も存在し、そのような物も文化(元号)7年（1810年）刊行の貨幣解説史料である『金銀図録』に掲載されている。