21. INTERIOR, DOUBLE STAIRWAY LEADING TO MODEL HALL, DETAIL OF ONE FLIGHT; 21. INTERIOR, DOUBLE STAIRWAY LEADING TO MODEL HALL, DETAIL OF ONE FLIGHT (5 x 7 negative; 8 x 10 print) - Patent Office Building, Bounded by Seventh, Ninth, F & G Streets, Northwest, Washington, District of Columbia, DC

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Size: 3791px × 5274px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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