050611-C-4938N-328 Boston, Mass. (June 11, 2005) - U.S. Coast Guard patrol boats and a tugboat escort USS Constitution, "Old Ironsides", out to Island Castle Hill in south Boston prior to firing a 21-gun salute. This event officially starts Navy Week Boston, a series of community events sponsored by the Navy Office of Community Outreach. Constitution is the oldest commissioned vessel in the world. U.S. Coast Guard photo by Public Affairs Specialist 3rd Class Kelly Newlin (RELEASED) US Navy 050611-C-4938N-328 U.S.