after a look at Ferretti's website/for sale section, I saw a piece I was interested. A 3646 circa 1950. I called him and had a weird conversation. Something didn't seem to click. So I just let it go. I also asked after the WWF model PAM037 (of which he had few for sale) but also that part went not so well. I promised myself to stop over in Montecatini but, by the time I visited Italy again, I just didn't follow through.