cliparts/d/0/2/f/clipart-hammer-and-sickle-d02f.svg image/svg+xml Open Clip Art Library Hammer and Sickle 2013-03-03T11:39:51 http://openclipart.org/detail/175437/hammer-and-sickle-by-worker-175437 worker and class clip art clipart communism hammer proletariat revolution sickle socialism star worker working