hello,
thanks guys for your reply, I probably then have a b range rear wheel (hence the narrow sprocket drum);
I guess and hope I should be fine with a brake plate like the one on ebay mentionned by trickytree wink2, with that and my "b range" hub I'm closer to easy street, I'll order a drum sprocket to go with it, and then it's just a matter of filling it up with all sorts of half circle covered with espestos, and a couple of springs,..
If I managed to send this pic, trickytree, that's where the slot comes in handy. I must confess I almost
that little knob of metal out, I'm glad I didn't
and yep, it's a bolt on frame. I don't know about the welded ones.