On Wed, Aug 22, 2012 at 2:47 PM, Thomas Dalton <thomas.dalton at gmail.com> wrote: > http://commons.wikimedia.org/wiki/File:Upperarm.jpg http://commons.wikimedia.org/wiki/File:Arm.agr.jpg would probably be a better example. There's a good chance that wouldn't be considered copyrightable under US law.