The reverse side of the Kentucky <a href="https://en.wikipedia.org/wiki/State_Quarter" class="extiw" title="en:State Quarter">State Quarter</a>.  It is a "proof" obtained from the US Mint website and has its background removed, was cropped, and converted to PNG with Macromedia Fireworks.
T. James Ferrell, employee of the US Mint<a rel="nofollow" class="external autonumber" href="http://www.money.org/AM/Template.cfm?Section=Home&amp;TEMPLATE=/CM/ContentDisplay.cfm&amp;CONTENTID=1424">[1]</a>
2001-10-15
<a rel="nofollow" class="external free" href="https://www.usmint.gov/historianscorner/?action=coinDetail&amp;id=29136">http://www.usmint.gov/historianscorner/?action=coinDetail&amp;id=29136</a>