Hi Herman. Previously I posted the pictures below as a yellow unknown we purchased from a nursery as a "Celeste." We knew very soon that it was not a Celeste.
Good news though, it proved to be far superior, and is definately one of our favorites now.
You thought it might be a 143-36 or other modern hybrid cultivar. I looked over the pictures, and I think that is is very likely that it is a modern hybrid cultivar, possibly 143-36 or another. I'm not sure the leaves on ours match yours though, and since you know that yours is 143-36 that makes me less certain about ours.
I would say though, that ours has excellent flavor, sugar sweet, with no hint of bitterness that I have ever detected. And it has never split, or soured because of the tighly closed eye, is highly productive, very large figs, light breba and heavy main crop, early ripening (main crop starts ripening in mid-July) and grows like a weed unprotected in ground here in Zone 7b. Whatever it is, I would highly recommend it. Negatives? It is a strong grower and suckers at the base quite a bit, but nothing a little annual pruning won't fix. Overall this is a great fig, whatever it is.
Hope you are well my friend.
John
North Georgia Piedmont
Zone 7b