The description on this image from Flickr says it’s a proposed plan for public buildings on the Mall near the Capitol.
![Washington DC proposed plan of public buildings. Copy of drawing.](https://ghostsofdc.org/wp-content/uploads/sites/7/2013/07/3382985033_43351eb08e_o.jpg)
Source: Flickr user medicalmuseum
The description on this image from Flickr says it’s a proposed plan for public buildings on the Mall near the Capitol.
Source: Flickr user medicalmuseum