OK, first -- Yes, I know there weren't any such animal as 1850s narrow gauge 4-4-0s --- that's why it's a "Nonesuch"!
Now that we have THAT out of the way, if there was one, what would it look like? Maybe something like this?
Or this?
Shawn Fields sent me an Aristo Pacific drive. It came this morning, and by lunchtime looked like this. I know the counterweights are wrong for 1855, but it ain't worth replacing 1/3 of the spokes to fix.
I also had an incomplete MPC "General" kit here. While the General IS an 1855 Rogers, the kit is a model of it's 1896 rebuilt configuration... So I decided to backdate it just a bit. The first step was to section the boiler and move the sand dome forward. It will now be a second steam dome.
I recycled the Bachmann pony truck that I shortened for #12, then didn't use. The General kit is 2-1/4" gauge... narrowing things for 45mm required a bit of reconfiguring because the boiler is just a bit too fat. Good thing I wanted inclined cylinders anyway! Yes, in 1:24 those are 66" drivers. It's an express engine!
Narrowing the tender trucks was fairly easy, so was fitting them with Lionel wheelsets... I strengthened them with coffee stirrers so they MIGHT hold up under use.
That stopping point called out of glue blues, the cab is just hanging in mid air to see what it will look like. The motor will be in the tender like a B'mann HO scale 4-4-0... I couldn't figure any other way...
All in all. not bad for a day's work?
Now that we have THAT out of the way, if there was one, what would it look like? Maybe something like this?

Or this?

Shawn Fields sent me an Aristo Pacific drive. It came this morning, and by lunchtime looked like this. I know the counterweights are wrong for 1855, but it ain't worth replacing 1/3 of the spokes to fix.

I also had an incomplete MPC "General" kit here. While the General IS an 1855 Rogers, the kit is a model of it's 1896 rebuilt configuration... So I decided to backdate it just a bit. The first step was to section the boiler and move the sand dome forward. It will now be a second steam dome.

I recycled the Bachmann pony truck that I shortened for #12, then didn't use. The General kit is 2-1/4" gauge... narrowing things for 45mm required a bit of reconfiguring because the boiler is just a bit too fat. Good thing I wanted inclined cylinders anyway! Yes, in 1:24 those are 66" drivers. It's an express engine!

Narrowing the tender trucks was fairly easy, so was fitting them with Lionel wheelsets... I strengthened them with coffee stirrers so they MIGHT hold up under use.

That stopping point called out of glue blues, the cab is just hanging in mid air to see what it will look like. The motor will be in the tender like a B'mann HO scale 4-4-0... I couldn't figure any other way...

All in all. not bad for a day's work?