prrjim posted:I would say very unlikely, very very unlikely.
ON3 was very wide spread as a common carrier in the late 1870s.
I do not believe anyone was modeling On3 in 1870.....no small can motors for one thing.
On3 is 1/4" to the foot, 1/48, models of 1/1 scale trains running on track gauge of 3 feet.
If there were model railroaders modeling On3, On30 or On2 in 1870 I'd love to see them!!!