Here are my Carbon tomatoes, so far, this year.
This one is from FarmerShawn of Tomatoville (I received the seeds in 2019).
This one must be from Gardenboy of Tomatoville (I received seeds from him in 2019), although I'm not 100% sure (it's not from FarmerShawn's seeds). As far as I know, I don't have any Carbon seeds from anyone besides Gardenboy and FarmerShawn (although I once had some from TomatoFest that I gave to someone).
heirloom_tomato