These cars were converted from D&RGW outside braced standard gauge boxcars when the oil boom exacerbated the existing supply of converted hoppers. A few still exist on the D&S converted to tourist open excursion cars. These kits are predominantly etched brass components combined with precision 3D printed ABS subassemblies. The brass gives the cars excellent weight and the fidelity of detail is excellent. Full decal lettering is included.