|CB&Q GP20 928 westbound at Aurora, Illinois, August 21, 1964, photo by Chuck Zeiler. This GP20 was built in April 1961 (c/n 26599) on EMD Order 7597, became BN 2064, and was retired in July 1986. It is being assisted by GP35 987. On the far right is Train #10, the eastbound Dever Zephyr, departing Aurora for its final stop at Chicago's Union Station. If #10 is on time, it is a little after 9:32 AM locally.