"Fortifications Map File" Plans of Military Forts Public domain scan of a plan of settlement buildings, free to use, no copyright restrictions image - Picryl description
Maryland, the District of Columbia, and the Potomac River
Berryman Political Cartoon Collection Public domain reproduction of political cartoon, free to use, no copyright restrictions image - Picryl description
1940 Census Enumeration District Maps - Pennsylvania - Montgomery County Public domain scan of architectural plan, map, free to use, no copyright restrictions image - Picryl description
1940 Census Enumeration District Maps - Pennsylvania - Montgomery County Public domain scan of architectural plan, map, free to use, no copyright restrictions image - Picryl description
Enumeration District Maps - Kansas - Montgomery County Public domain photograph of architecture design, diagram, drawing, building plan, free to use, no copyright restrictions image - Picryl description