Seal of the <a href="https://en.wikipedia.org/wiki/United_States_Government_Printing_Office" class="extiw" title="en:United States Government Printing Office">United States Government Printing Office</a>.  The central element is a printing press.
U.S. Government
Extracted from <a rel="nofollow" class="external text" href="https://www.gpo.gov/procurement/ditsg/preflight.htm">GPO preflighting guidelines</a> PDF document <a rel="nofollow" class="external text" href="http://www.access.gpo.gov/procurement/ditsg/preflyt.pdf">here</a>.