GP7 599 at North Clinton, Missouri on September 9, 1972. This unit was received by Frisco on November 30, 1951.

GP7 599 at North Clinton, Missouri on January 26, 1976.

GP7 599 at North Clinton, Missouri on January 27, 1976. Pictured here, the unit was near the end of its duty for Frisco as it was sold to PNC on December 17, 1976.