Yme, Those are some good pics of the layout at the Brandywine River museum! Those Santa "F" unit looking locomotives aren't FP7's, they're Faibanks-Morse C-Liners. Looke here to learn about these distinctive units: http://en.wikipedia.org/wiki/FM_Consolidated_line Great story Wayne! always great to see an expirenced journalist covering the story, stock photo citing and all! sign1 That's great! Soo...perhaps another "A" unit is in the works, or perhaps a unpowered "B" unit to make it an A-B-A set? You also can mix and match the rare "Yellow Bonnets" with the more famous Warbonnet (RED) passenger diesels, because the yellow bonnets appeared at the end of the "F" unit era on the santa fe (1940-1972* to be exact) *excludes FP45's and their freight variant, the F45.