The year was 1936, in the middle of the great American depression. A tiny railroad in the southern part of the state of Colorado struggles to survive after coming out of bankruptcy earlier in the decade. In a effort to save money and maintain service, the Rio Grande Southern Railroad developed self propel motors to move the mail and passengers between the small towns in the middle of the Rocky mountains.
Without any plans, and to save money, the railroad took available steel and old car bodies and engines to develop the motors. Only a total of eight were built 1931 and 1936 and the last one #7 was modelled for this contest.
Taking a cue from the photo found here:
we begin our pleasure ride.