Chain Bridge. Several miles above the Potomac River, overlooking the Palisades, Washington, Image includes L. Elmer Derr and Marie Balsley (later wife to L. Elmer Derr)Smithsonian Institution Archives, Record Unit 7355, Martin A. Gruber Photograph Collection, Image No.

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Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

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