Petty Officer 1st Class Sean Anderson, an aviation maintenance technician at Air Station Detroit, kneels in front of his father, Harry Anderson, and Coast Guard Petty Officer 1st Class Matt Kehler as they pin on his new collar devices during his advancement ceremony, Oct. 1, 2015. During an advancement ceremony, the person advancing chooses who will replace the old collar devices with the new rank. (U.S. Coast Guard photo by Lt.j.g. Jacon Naum/released)
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