Hello Marc,
Last two are in my mind too, in a small corner ...
I'm just talking about one Stab machine for the moment.
It's obvious that without more photo evidence and/or clear caption I'm still with my usual - How they use to say? - "mere speculation"; that's it!
But I like that last one; It's stylish, isn't it?
.
Have we any NAGr. 3 available photo evidence displaying that "J2" marking?
Cheers, Franck.