NORTH HALL, MUSEUM OF MODELS,
PATENT OFFICE.
THE U.S. PATENT OFFICE.
![[High-Resolution]](#4096530447040523096_i_12_large.jpg.i_12low.wrap-0.html.html){kind=link}
BUREAU OF ENGRAVING & PRINTING.
THOMAS’ CIRCLE FROM THE PORTLAND FLATS, LOOKING N.W.
NATIONAL MUSEUM.
NORTH HALL, MUSEUM OF MODELS,
PATENT OFFICE.
THE U.S. PATENT OFFICE.
BUREAU OF ENGRAVING & PRINTING.
THOMAS’ CIRCLE FROM THE PORTLAND FLATS, LOOKING N.W.
NATIONAL MUSEUM.