Gunma 群馬県
Origin
An archaic form of the kanji 群 (gun), the first character of Gunma, sits at the center, surrounded by the three famous mountains of Jomo — Mt. Akagi, Mt. Haruna, and Mt. Myogi. The design was created from entries submitted by residents when the prefectural office building was constructed, and was officially announced on October 1, 1926.
Adopted
October 1, 1926