In a ballot, the residents of Koshigaya City chose the above mark from submissions
made by people from throughout Japan. This mark was then designated as the official
mark of Koshigaya City on November 3rd, 1998, to mark the 40th anniversary of the
city's formation.
The mark symbolizes Koshigaya City's nature as a city with abundant waterways,
and by showing a parent Collared Turtle Dove and their chick spreading their wings to
fly towards the future, also symbolizes the city's administration and residents working
together to make Koshigaya City a good place to live for all people.