Keywords: 21 interior stair 029419pu.tif Photograph en 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 HABS - Photographer 5 x 7 in LOC-image hhh dc0194/photos 029419p accession number HABS DC WASH 503--21 No known restrictions on images made by the U S Government; images copied from other sources may be restricted <gallery> 21 INTERIOR DOUBLE STAIRWAY LEADING TO MODEL HALL jpg jpg </gallery> 38 895 -77 03667 DC WASH 503--21 Patent Office Building Washington D C in the 1980s |