Ginowan City [Okinawa prefecture Japan]

According to Regulations and Rules of Ginowan City the Ginowan city flag was adopted on July 1st 1967.

Color of field: blue
Color of Emblem: white
Proportion: 2:3
Placement of Emblem: centered
Size of Emblem: 7/10 of length

The Ginowan city emblem was adopted on June 17th 1967. Emblem designer: Kiyoshi Sudo
Miru Takano, 13 November 2005

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Emblem adopted: 17 June 1967; colour of field: dark blue; diameter of emblem : 6/10 flag height a stylized katakana Gino ギノ
Nozomi Kariyasu, 20 February 2006

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There is an explanation of the emblem at city.cinowan.okinawa,jp. The emblem is a stylised katakana Gi ギ in the shape of a rushing ahead wing and a stylised katakana No ノ in a circle representing the gulf/bay (湾 wan) and co-operative harmony and peace. To my eyes, the circular shape actually resembles a hiragana no の
Jonathan Dixon, 18 May 2006