Didn't know for sure until tasting, but bought the one pictured on the recommendation of the whiskey buyer at a local chain. He told me it was a wheater after being involved in the selection so I took it on faith. After opening and tasting quickly bought the backup. Shared w friends and we all concluded that it had to be BT. Compares very favorably to the WLW's. Also had it confirmed by another source that it is BT juice. So there you go best I can say without confirmation from KBD.
Nice! It's interesting how wheaters have become very obvious to tell the difference between BT, Bernheim, and S-W even though they are essentially the same recipe. So basically you got an extra aged barrel proof OWA. You can't go wrong with that!