I think this has come up before, but I searched key words and could find nothing.
If I recall correctly, when I got into the O gauge hobby, in the late 1990s, MTH had a layout in a trailer that they took to train shows and other promotions.
Surely some others on this Forum remember this layout. It seems to me that it was owned (perhaps sold by MTH?) by an individual who had it stored it.
Am I, in my aging mind, imagining this?