Actually, I saw a cool early 50s Doniselli last night on ebay (though owner claims its 1920s). Similar to one I had about 1972, which I traded to a bike shop for a brand new Gitane track bike to train on. Not a great frame, but weird in an Italian sorta way.
I may bid, but with the suicide Campagnolo front derailler, its sure to go high!
Ted