| Blackhawk. Here is a duplicate 35mm color slide (converted to B&W) of a photo by Edwin E. Olsen. Photo Caption: "Pennsylvania Duplex, 4-4-4-4, on head end of express and mail train in northern Indiana." The locomotive's number, the date, and the location are not recorded. This photo comes from a color slide set entitled "When Steam Was King" that's produced by Blackhawk Films of Davenport, Iowa (357-10). |