17840 - As reported by Frank
The set that Frank has is completely different than the set is that I have on my spreadsheet. This set is steam and not diesel and the contents are all different. This is what Frank has:

End flap with set number.

Set box top.

Set contents. New York Central 0-4-0 steam switcher, tuscan Union Pacific box car, red Western Maryland hopper car, green Western Pacific bay window caboose, track and transformer.