The first USC&GS Discoverer was a survey ship that served in the United States Coast and Geodetic Survey from 1922 to 1941.
USC&GS Discoverer in Territory of Alaska waters.
USS Auk (AM-38) was a Lapwing-class minesweeper acquired by the United States Navy after World War I to remove mines that had been placed during the war.
About 1935 in the Aleutian Islands
Felipe Larrazabal seen in 1952, with the Flower-class corvette Constitución behind.