Warrior 'H. Green' AM/RHS, a strong-growing clone from the early 1920s with a lot of (putatively) tetraploid or higher ploidy Leeanum in it...my guess anyways. Show it to Jerry Fischer he'll know.
I think Warrior 'H. Green' is a good possibility, and I know Oak Hill used to sell divisions, so it certainly is locally available. Nice flower, nice specimen size plant.