GP7 548 and Boxcar 27179 by Frisco.org Posted on August 26, 2015 GP7 548 and Boxcar 27179 GP7 548 and Boxcar 27179 at North Clinton, Missouri on May 12, 1975. Posted in Rolling Stock, RT Collection | Tagged 27179, 548, Boxcar, Electro-Motive Division, GP7 | Leave a comment