Flag of <a href="https://en.wikipedia.org/wiki/Penza" class="extiw" title="en:Penza">Penza</a>, <a href="//commons.wikimedia.org/wiki/Russia" class="mw-redirect" title="Russia">Russia</a> (according to the <a rel="nofollow" class="external text" href="http://www.pgduma.ru/gorod_penza/simvolika.php">21 Sept 2004 Act of the Penza City Duma on the Flag of Penza</a> (in Russian))
S.Filatov (<a href="https://en.wikipedia.org/wiki/Perm" class="extiw" title="w:Perm">Perm</a>, Russia)
<a rel="nofollow" class="external free" href="http://penza-gorod.ru/doc1-15.html">http://penza-gorod.ru/doc1-15.html</a>