Photographer(s) and circumstances of creation unknown.
11 8" x 10" and 10 4" x 5" glass photonegatives, some marked "1885", one marked "1865" and "Libby Prison"), but most seem from ca. 1885; silver gelatin except two silver collodion plates, one of which bears the "1865." The large plates were stored in a nineteenth-century wooden, grooved plate box (now stored separately). Images depict buildings and sites in Washington, D.C., including: aerial or bird's-eye views possibly taken from the (unfinished?) Washington Monument; the Manassas Panorama building with the completed (capped) Monument visible in the background; Washington street scenes, especially Pennsylvania Avenue; the Smithsonian castle; the U.S. Capitol; the White House; and dredging operations to create Hains Point.
W. L. Armstrong Washingtoniana Glass Negative Collection, 1865-1885, Archives Center, National Museum of American History