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 1942. "Casting a billet from an electric furnace, Chase Brass and Copper Co., Euclid, Ohio. Modern electric furnaces speeding the production of brass and other copper alloys for national defense. Here the molten metal is poured or cast from the tilted furnace into a mold to form a billet. The billet later is worked into rods, tubes, wires or special shapes for a variety of uses." View full size. 4x5 Kodachrome transparency by Alfred Palmer for the Office of War Information.