VO-1000m Units 202 and 204 by Frisco.org Posted on July 10, 2018 VO-1000m Units 202 and 204 VO-1000m Units 202 and 204 at Springfield, Missouri in September 1978 (Neil Shankweiler). This entry was posted in Slides and tagged 202, 204, Baldwin Locomotive Works, VO-1000, VO-1000m. Bookmark the permalink.