High Quality Content by WIKIPEDIA articles! USS Pinnacle (AM-274) was an Admirable class minesweeper of the US Navy during World War II. She was laid down by the Gulf Shipbuilding Corp., Chickasaw, Alabama, 1 February 1943 launched 11 September 1943 sponsored by Mrs. Francis W. Osborn; and commissioned 24 May 1944; Lt. Joseph B. Willams in command.