This strange flat-faced machine was one of two unique AB6 diesels built by EMD in 1940 for the Rock Island. Basically modified E6 B-units with cabs, they were designed to run as trailing units on ... (more)

A real oddball, Rock Island EMD AB6 is accelerating out of Chicago's La Salle Street Station with a bi-level commuter train.

Heading out on the afternoon dinky parade this oddity was living out it's last days. The RI oddball triuvirate had been broken with the retirement of the "Christine" but I got the other two.

Another Rock Island commuter service oddball--AB6 750--arrives at Joliet with an early afternoon commuter run. I was in 8th Grade and just getting to know about rail photography.