QuoteDear Hi,
I believe you are correct; they are OO.
They are great sets! Enjoy them!
the Bach-man

Just what I needed to know, thank you! I've been running them for years on regular HO track, I just upgraded to DCC and would like to still get some use out of them!

I have a few sets my dad purchased in the 1980s in the US, the Flying Scot, The Orient Express and The Battle of Britain sets, all look to have similar passenger cars and loco (a 4-6-0) and I was hoping to purchase a DCC locomotive that would work well with these coaches. So my question is, are these trains actually HO like it says on the box, or are they OO that were just marketed as HO in the US? I've scoured the internet and I'm leaning toward them actually being OO but I figured I'd ask the experts!