I acquired mine in 2012 from OrchidView / H.P. Norton. Not nearly as nice as yours tenman, well done and I love the round / full petals. I do notice that mine also stays very flat after opening... and all the way up to when the flower pops off. Are you planning to self it or doing any breeding? I think you should try. The world needs more of these and yours is one of the best I've seen.
Phrag. Haley Decker ( 4N 'Frank' x kovachii):
Pic from Jan 2020.
Phrag. Haley Decker ( 4N 'Frank' x kovachii):
Pic from Jan 2020.