I am surprised to see this discussion here, this being O scale land.
I have a collection of mostly 60's-70's european models in HO scale. I have enough track and trains to build a layout with it in fact, but have not had the time. But the european stuff is a weakness, especially models like the Rivarossi articulated steam locos.
Still need to find a model of one of these. I was able to get some shots of it in Slovenia last year.
My true weakness has always been the smaller locos in both steam and diesel.
I have the Kof that is shown and also a Italian 214 switcher.