Thanks Uwe, that IS a photo of my machine - that very one that I bought from Nickosew who, I must say, conducted an excellent transaction.
I'll take your suggestion and compare foot lift, stitch length, etc, to the specs for the other variants and post here for reference.
I see that you have a Pfaff 335 - me too, I love that machine. I'm not really sure why I bought the Adler, except that I like the idea of long stitches with big thread.
Gary