@RoyBoy posted:I'm sure mannyrock meant tin plate.
Yeah, probably. but he compared them with "standard O gauge cars", so I thought maybe he was differentiating between different types of tinplate. But I guess me meant modern cars. Early Lionel or tinplate was of course specifically designed to run on O-31. ( At least until the mid-thirties and the Hiawatha) A more pertinent question is will "standard O gauge" run on O-31. We'll get Manny up to speed on the nomenclature.
So Manny you should be good unless its a Hiawatha or a 1937 Hudson!