Keywords: 20 interior double stairway 029418pu.tif Photograph en 20 INTERIOR DOUBLE STAIRWAY LEADING TO MODEL HALL - 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 029418p accession number HABS DC WASH 503--20 No known restrictions on images made by the U S Government; images copied from other sources may be restricted <gallery> 20 INTERIOR DOUBLE STAIRWAY LEADING TO MODEL HALL jpg jpg </gallery> 38 895 -77 03667 DC WASH 503--20 Patent Office Building Washington D C in the 1980s |