Seal of the United States <a href="https://en.wikipedia.org/wiki/Bureau_of_Alcohol,_Tobacco,_and_Firearms" class="extiw" title="en:Bureau of Alcohol, Tobacco, and Firearms">Bureau of Alcohol, Tobacco, and Firearms</a> from when it was part of the Department of the Treasury.  The design is the same as the <a href="https://en.wikipedia.org/wiki/Seal_of_the_United_States_Department_of_the_Treasury" class="extiw" title="en:Seal of the United States Department of the Treasury">Treasury seal</a> with an ATF inscription.
U.S. federal government
<a rel="nofollow" class="external text" href="https://web.archive.org/web/19970103041352/http://www.atf.treas.gov/">February 1993</a>
Extracted from PDF version of the <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080916130643/http://atf.treas.gov/pub/gen_pub/2002annrpt/index.htm">2002 ATF annual report</a> (direct PDF URL <a rel="nofollow" class="external autonumber" href="https://web.archive.org/web/20080920054205/http://atf.treas.gov/pub/gen_pub/2002annrpt/cover.pdf">[1]</a>), and colorized according to the version on a <a rel="nofollow" class="external text" href="https://web.archive.org/web/20021012122059/atf.treas.gov/index.htm">late ATF home page</a> before it was moved to the Department of Justice.