Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.
Vintage photos of:
Sept. 17, 1935. "These two 150-foot-tall brick smokestacks on the Mall in Washington, D.C., were considered an eyesore and ordered demolished. The closer stack fell shortly after the far one toppled. They were erected when a central heating plant occupied the site." Harris & Ewing glass negative. View full size.