The attached picture is of SLSF #2018 & SLSF #2020 on trains 107 & 117 at Ft Scott, KS, September 1958. Original photo by James A Williams.
This kind of photo is always neat to see documenting the switching maneuver of 107 & 117 at Ft. Scott. There were similar photos of the same trains' rendezvous in the Frisco dining car book and also (With a FP-7 and E-8) in Greg Stout's Frisco In Color, Volume Two. Tom G.