Hello all
Yes the big engine is big ..here is a video link to see it in motion
https://www.youtube.com/watch?v=xmcIzXgRGFk
originally built in the 60's/ 70's ..with patterns from a Hudson ...lacking a center driver ..so 4-4-4..... but big...currently needs flues ... but one it will return to flying down the rails .
The little engine is a 1904 Cagney ..
here is a bit of fun with steam
https://www.youtube.com/watch?v=iC6T79JVmnw
Unknown if there ever was a shroud ... however the addition of one has been suggested to conserve the heat
Thank you Cheers carey