The observe side of all coins shows the coin's value in kanji as well as the country name (through 1945, Dai Nippon (大日本, "Great Japan"); after 1945, Nippon-koku (日本国, "State of Japan") (except for the current 5-yen coin with the country name on the reverse). The reverse side of all coins shows the year of mintage, which is not shown in Gregorian calendar years, but instead in the regnal year of the current emperor's reign.