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.
Chesapeake & Ohio M-1 steam turbine 502 at Cincinnati on July 2, 1949. These coal-fired turbine locomotives were complete failures in passenger service despite their impressive size and complexity. Built in 1947 by Baldwin Locomotive for exorbitant prices, all three were retired by 1950. Color of this engine, in case you're wondering, was yellow-orange up top with gray beneath, with dark blue lettering and trim. View full size.