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.
Toledo circa 1910. "Madison Avenue and the Ohio Building." Personal favorite among the many businesses represented here: window for the Toledo Vacuum Cleaner Co. ("THE VACUUM CLEANING MACHINE FOR PRIVATE RESIDENCES"). 8x10 glass negative, Detroit Publishing Co. View full size.