DENVER & RIO GRANDE LOCOMOTIVES Black : All except as below. Russia Iron : Boiler jacket up to 1918, Black or Olive Green thereafter Varnished Wood :Cab until 1918, Black thereafter Gold : Lettering & trim until 1918, White or Aluminum thereafter Polished brass : Boiler bands, piping, Sand & Steam dome trim FREIGHT CARS 1) Princess Mineral Brown, White lettering, Black iron parts; later Boxcar Red. Gondolas, Flats & Boxcars CABOOSES 1) Indian Red to 1920, White lettering, handrails, steps 2) Boxcar Red after 1920, otherwise same as before WORK EQUIPMENT 1) Boxcar Red with White lettering before 1940 2) Reefer Gray with Black lettering after 1940, Black underbody 3) Black with White lettering, Ditcher OW PASSENGER CARS 1) D&RG Tuscan Red sides, dark (Black or Brown) roof, Gold lettering and trim before September 1918 2) Pullman Green sides, Black roof, Gold lettering 1918 on. 3) Rio Grande Gold (Yellow) sides, Black letterboard and stripe(s) under windows, Dulux Gold lettering and Aluminum roof on Silverton train after 1950 Russia Iron was the term used for a pickled sheet iron made rustproof by a mixture of metal oxides formed in the surface of the metal, analogeous to gun bluing. Many shades existed, depending on the formula. It ought to be a light bluish metallic gray, my formula is 1 cc of Floquil Gunmetal, 2 cc of white and a drop of blue or jade green.