Coast Guard cadet Karissa Maurer uses an azimuth circle aboard the Coast Guard Cutter Eagle to measure the ship's gyro compass error on June 24, 2013. U.S. Coast Guard photo by Petty Officer 2nd Class Walter Shinn
Petty Officer 2nd Class Walter Shinn
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/990455">https://www.dvidshub.net/image/990455</a>