After painting, pay close attention to the lettering. Both 345 and 346 wore the "Royal Gorge" bug-herald when they arrived on the C&S.
After 346 rolled over in the Kenosha wreck, the C&S had the Denver Burlington Shops rebuild the engine and gave her a new paint job. The new (for 1937) "Moffat Road" bug-herald was applied at that time. I suspect that the C&S borrowed a set of stencils from the D&RGW.