U25Bs 829 and 803, and GP38AC 644 by Frisco.org Posted on March 16, 2018 U25Bs 829 and 803, and GP38AC 644 U25Bs 829 and 803, and GP38AC 644 at Springfield, Missouri on March 17, 1972. This entry was posted in Slides and tagged 644, 803, 829, Electro-Motive Division, General Electric, GP38AC, U25B. Bookmark the permalink.