Each individual purchase is a set of three pieces as shown in the photo. unpainted, unlettered, unassembled resin kit with no instructions. Some cutting, filing, and/or glueing will be needed to fit these to various kits. Standard coach kit is appropriate for nearly all passenger cars and combines manufactured by Jackson & Sharp or Billmeyer and Small from 1850 to 1910 and were owned by many railroads including the DRGW, UP, C&S, SP, and many others. 

The vestibule interior is appropriate for the ten cars refitted by the DRGW for their premier narrow gauge passenger trains. The Parlor Dinette is appropriate for the parlor cars Durango, Alamosa, and Chama. The parlor smoking is appropriate for the cars Gunnison and Salida (this image is of HOn3 interior).