I got the original seeds from D. Landreth Seed Company in 2007 and the packet was labeled Russian Black Purple, which is a plum-type tomato. Well, that's not what grew! These behemoths are prolific and HUGE! I don't know what the actual variety might have been, but I've grown a number of black beefsteaks and these are different from Krim, Tula, Paul Robeson, Ananas Noire, and Cherokee Purple. They have the rich, smoky flavor typical of the black tomatoes. They are prone to cracking, but their flavor, size, and prolificity more than make up for that. The seeds I'm offering are my F3 generation, which has so far been stable since I believe the packet was simply mislabeled, but I can't yet guarantee stability of this variety. Indeterminate. Matures 75-85 days from transplant. Packet contains at least 30 seeds.