US Coast Guard <a href="https://en.wikipedia.org/wiki/Signalman_(rank)" class="extiw" title="en:Signalman (rank)">Signalman</a> Second Class rank insignia
<a href="//commons.wikimedia.org/wiki/User:KCVelaga" title="User:KCVelaga">Krishna Chaitanya Velaga</a>
2019-02-26
<a href="//commons.wikimedia.org/wiki/File:USCG_PO2.svg" title="File:USCG PO2.svg">File:USCG PO2.svg</a> and p.35 of <a rel="nofollow" class="external text" href="https://media.defense.gov/2017/Oct/17/2001828414/-1/-1/0/FINAL%20%20CG%20RATING%20&amp;%20WARRANT%20MARKS%20DPL.PDF">U. S. Coast Guard: Enlisted Ratings, Rating Speciality Marks &amp; Distinguished Marks</a>