U30B 835, GP35 712 and U30B 839 by Frisco.org Posted on May 2, 2014 U30B 835, GP35 712 and U30B 839 U30B 835, GP35 712 and U30B 839 at Rolla, Missouri in June 1970 (Mike Condren). This entry was posted in RT Collection and tagged 712, 835, 839, Electro-Motive Division, General Electric, GP35, U30B. Bookmark the permalink.