If I'm not mistaken there has been a fairly recent Chinese produced HO live steam locomotive, but it wasn't very scale looking and had a clear glass bulb for a tender, that was the actual boiler. Many years ago there was a production run by a regular manufacturer (Hornby) , of an English prototype locomotive that was really well done to scale, but I think it often had issues with getting it to run properly, but when it did, it was impressive.
Here is somebody's webpage dedicated to their experience with them:
https://www.scottpages.net/ReviewOfLiveSteam.htmlHope that helps some.
I should have mentioned.I own 3 LS-Loc The Traction Engine & 2 Mini Rockets. Hornby Mallard Live Steam/Purchased new Came DOA.Sits in Closet. 4 Philcraft . Just into Minis Suddenly.Keep em coming but only Minis which are still produced.Thank you.I seen a Luton Bowman Palm size i wish i could own but cannot locate one.
I have a Lutz Hielscher HO Grasshopper and an LS-LOC mini-rocket.
A while back I made Dr. Senft's Dickins in O-gauge, and recently have been thinking of making another in HO; perhaps you'd like to try that.
Hi I forgot to ask you.Did you want to part the Grasshopper to me.I will buy if you want to sell it.Please let me know Thank you.
Hi I forgot to ask you.Did you want to part the Grasshopper to me.I will buy if you want to sell it.Please let me know Thank you.
Not selling my Grasshopper. Are you, Nick?
I seen a Luton Bowman Palm size i wish i could own but cannot locate one.
A miniature Luton Bowman
Something like this
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And then there is always this
Mersey 54r ??
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Stop with the steam porn Dennis!!

Never seen the second one.That bowman is now second on my want list.
What Rob doesn’t know is that Dennis has large hands

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Wow look at the SIZE of them there MITS.
Never seen the second one.That bowman is now second on my want list.
The Luton Bowman is very rare and the Mersey even rarer so much so that it is a 1 off