Merci Train model

1990s Model of 40/8 boxcar given to Arizona; Merci Train
Model, boxcar; of 40/8 car given to State of Arizona by French people; part of Merci train.
Made of wood, grey in color, with coat of arms on both front/back of car of various cities/regions of France that participated.
Wheels, etc are of plastic; sitting on metal track and entire model is on an oak platform with a plaque
Colors - Primarily grey