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:
July 1935. "Outside water supply, Washington, D.C. Only source of water supply winter and summer for many houses in slum areas. In some places drainage is so poor that surplus water backs up in huge puddles." These municipal water taps (or pumps -- they have crank handles) appear in several photos from this series. I wonder if any survive. 35mm negative by Carl Mydans. View full size.