The observation coach, #106, named the "Grand Canyon" was part of the original consist of coaches that ran on the Disneyland and Santa Fe Railroad from 1955 till 1974. While the rest of this train was sold to collectors to make way for a new, more efficient design, the Grand Canyon was retained, repainted and retrofitted as the "Lilly Belle" and is still in use today. A good history can be found at https://www.mouseplanet.com/7261/The_Lilly_Belle. Because the original was not available to study for this model, the first 3 photos show what I used as a basis  for my model. The intention is to build an entire consist to this level, but that is a future project.