It's part Gretsch and part Slingerland, may I present, the Gretscherland!
I was somewhat concerned that someone had put Gretsch hardware on a non-Gretsch shell because the interior is painted white. But, after trying to get the heads off, I can safely say, it's a Gretsch, I practically had to use dynamite.
Anyway, did Gretsch ever offer a shell with the interior painted white?