1904 Devil's Bridge St. Gotthard Pass Switzerland Print - ORIGINAL SW2 YPH2 This is an original 1892

This is an original 1892 black and white print ad promoting Lactated Food for infants from Wells

This is an original 1928 black and white print ad for the Hall-Scott Motor Car Company

It is estimated that over 50 million people attended the event

This is an original 1911 black and white print ad for Bigelow

1904 Devil's Bridge St. Gotthard Pass Switzerland Print - ORIGINAL SW2 YPH2 This is an original 1892"Devil's Bridge, St. Gotthard Pass." This is an original 1904 photogravure of the Devil's Bridge at St. Gotthard Pass, a high mountain pass in Switzerland. The Photogravure Process. A photogravure is a photographic image produced from an engraving plate an expensive and rarely used process today. Through the transfer of etching ink from an etched copperplate to special dampened paper run through an etching press, this process creates an image that