This photo dates to the early 1920s. Its caption reads: RThe “Akron” and the “Los Angeles” in Flight. At the left is the great dirigible Akron, built in American yards as a fighting ship for the Navy; 785 feet long, 132 feet in diameter. Following her is the Los Angeles, 656 feet long, 90 feet in diameter. The photograph was taken as the giant airships sailed over Philadelphia.