Hi Leon. As far as the striking similarity between the Italian 258 and Genovese Nero AF, I have been seeing it as well. One theory I have, is that when Todd Kennedy gathered the best of what he could find in Italy, and then lost, or mixed up the name tags, it seems possible to me that Genovese Nero was one of the varieties he obtained. Maybe it is Italian 258. It probably never can be proven, but I think that it is possible.