At first I thought several of these were different, but the CN you are showing resembles the Neri 1 (Brown Neri) in leaves and fruit.
I believed at one point, after tasting Sal's C., Aldo, and Weeping Black, that they were NOT the same.
But after a year of evaluation, if not the same, they are closely related.
Plus you may be able to throw CN in to the conversation since Neri 1, in leaves and taste resembles Sal's C. The only difference was that Neri produced more Brebas, of very good quality.
The Breba have a lighter blushed red look, while the main seem like a dark purplish mahogany.