This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Official U.S. Navy Imagery USS Constitution Sailors perform War of era gun drills for the public. BOSTON May Sailors assigned to USS Constitution perform War of era gun drills for the public at Fort Independence on Castle Island as part of Memorial Day weekend festivities Fort Independence served as defense post for Boston Harbor