Attachment There are sprites for an unused locomotive in the game files known by the filename "QUE_". Like nearly all other trains in Railroad Tycoon II, the sprites were made by photographing a model train, in this case a Jouef Decauville 0-4-0 produced by Playcraft.
person MehDeletingLater calendar_month October 29, 2023
The Cutting Room Floor article:

Playcraft Decauville System train model catalog: