在第一次世界大戰期間，這是山姆大叔最大的一艘潛艇

出處: Pacific and Atlantic Photos, Inc., photographer. "Uncle Sam's Largest Submarine, The Detroit News Timely Topics." Ca. 1915-1930. Touring Turn-of-the-Century America: Photographs from the Detroit Publishing Company, 1880 - 1920, Library of Congress.