W3C-validity not checked.
The symbol is announced on March 1, 1968.
(Original text: :Image:Flag of Nara.svg and http://www.pref.nara.jp/somu-so/jourei/reiki_honbun/k401RG00000079.html)
User:Kzaral.

The original uploader was Zscout370 at English Wikipedia.. Improved by User:Wrightbus