| Chicago Burlington & Quincy Railroad E7 9949 on a westbound Dinky at Naperville, Illinois on April 28, 1965, Ektachrome by Chuck Zeiler. Built in September 1947 (c/n 4501) on EMD Order E792A, it became BN 9925 sometime after the March 2, 1970 merger and was traded to EMD on an order for SD45's September 14, 1970. This particular unit is numbered above the rest of the E7's, which were numbered 9916A-B through 9937A, and in A-B pairs except for the last unit, 9937A. Logic would seem to have this unit numbered 9937B, but 9937B turned out to be the first E8. To further confuse the issue, there was a single E8 numbered 9949A, with the first couple of E8 orders numbered 9937B, 9938A-B through 9948A-B, and 9949A. So far, I can find no explanation for this sequence anomaly. |