Letters: D&SL Tank Car Model: . . . . by John VolpParlor Car 800, and other Passenger Car Updates: . . . . by John EmmotSwitching Coal Mine Tipples: . . . . by Ken ShaverCoal Mine Railroads: . . . . by Ken ShaverCompetition: . . . . by Ken ShaverThe Rocky Mountain Railway: . . . . by Ken Shaver