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:
"Inauguration of Aero Mail service. Polo Field mechanics." On May 15, 1918, "America's first aerial mail service was put into operation when aeroplanes piloted by Army aviators carried consignments of mail from New York and Philadelphia to Washington, and from Philadelphia to New York." View full size.