Postcard of Notable Sites in DC, by United States Government Printing Office, c. 1886-1898, Smithsonian Archives - History Div, Color postcard of notable sites in Washington, DC. The Smithsonian Institution Building, or Castle, is featured in the bottom left-hand corner on the front. Other sites on the front are the Washington Monument, the United States Capitol, the United States Treasury, the White House, and the Andrew Jackson Statue in Lafayette Park. The address side has a picture of Thomas Jefferson on the right and reads "Postal Card - One Cent. United Stastes of America." The postcard is unused..