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:
February 1930. Washington, D.C. "Army Airship C-41 lands on Mall and airmen, led by Brigadier General William J. Flood of the 19th Airship Company, place wreath at Lincoln Memorial, honoring Lincoln's Birthday." Harris & Ewing Collection glass negative. View full size.