Many thanks to all who replied and their 'observations'.
I was in error pertaining to the lit drumhead and modified my original post.
The search continues for an observation car to the Moonlight Express, or at least one that 'blends in' with the set.

Assisting my elderly neighbor set up their Christmas Village for the up coming Holiday. Yea....I know....Little by little!
They have a starter set of the Moonlight or Wolf train and needed to find an Observation car to complete the set.
Was there ever one made? If so, is there a part number I can continue searching for or might you have one for sale? MANY THANKS in advance for your time!
Wes
P.S.: The set is: HAWTHORNE VILLAGE by BACHMANN, MOONLIGHT EXPRESS