1913 JP - 1924 1 Sen Japanese Coin From Taishō Era Japan.

In 1916, a third version of 1 sen coin was introduced. It was composed of bronze like the previous coin. However, this coin was smaller in mass and diameter, being only 3.75 grams in mass and 23 millimeters in diameter. On the coin's obverse was the Government Seal of Japan, a stylized paulownia flower. Above this is the issuing authority, to the sides are cherry blossoms, and below is the year of minting in Taisho. Displayed on the coin's reverse is the value surrounded by an arabesque pattern, which is broken at the top and bottom by a flower. The coins were first used until 1924. About 1.3 billion of these coins were produced between 1916 and 1924, with a majority being minted in 1921 and 1922.[4] During 1927, the coin was reintroduced. It was minted until 1938. Between this time, a number of about 763.5 million of the coins were produced.