EFC Design 1057-A: Illustrations


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S.S. Challenger (Design 1057-A), probably photographed around the time of her completion in October 1918. Design 1057-A had turbines while Design 1057-B had reciprocating engines. Both were built by the Union Iron Works (later Bethlehem Steel Co.), Alameda, Calif. (NARA: RG-19-LCM)