U.S. Coast Guard Petty Officer 3rd Class Ian Burgess unscrews the Coast Guard flag from the mast of a 29-foot response boat-small April 14, 2017, at Station Cape Cod Canal in Sandwich, Massachusetts.
Prior to conducting a patrol, boat checks were completed ahead of time, including changing worn flags for new ones. (U.S. Coast Guard photo by Petty Officer 3rd Class Nicole J. Groll) Original public domain image from Flickr