Front: (value) 壹 (1) upper-right of Mount Fuji
(volcano, 富士山 Fujisan) inside landscape
legend: none
Back: Stylized cherry blossom (Prunus serrulata, sakura (桜 - kanji for cherry blossoms, 櫻 - kanji for cherry tree, or さくら - sa-ku-ra written in Hiragana syllabary)
legend: (top, 3 characters, state name) 本日大 (sun-origin empire -> Nippon/Nihon "Empire/land of the Rising Sun")
Edge: P - plain, type: beveled
Note: Circulated unofficially for a few days before the end of WWII in Central Japan.