Founded in 1846, Pennsylvania Railroad Company (PRR) was a leading industrial and transportation force throughout the nineteenth and twentieth centuries. This collection features a cyanotype and a photographic copy print of an image depicting the first passenger car created for PRR, most likely taken in 1893 in relation to Chicago World's Columbian Exposition.

The Chicago Railroad Fair was the first exposition after the Second World War and the last exposition that featured railroads as its theme. It marked the centennial of the arrival of railroads to Chicago and their role in westward expansion. This is a postcard of the narrow gauge Deadwood Central train that carried visitors around the fairground.