File:Polish Horseman's picks from XVII century.jpg

Summary
Polish Horseman's picks from 17th century. From Wikipedia (http://en.wikipedia.org/wiki/File:Polish_Horseman's_picks_from_XVII_century.PNG), where it's licensed under both GPL version 1.2 and Creative Commons Attribution 3.0 Unported; as a derivative work, all subsequent versions, including this JPEG-saved copy of the original enormous 2.47MB PNG, are therefor licensed under GPL3.0 and CC-BY.