From how the tuckbox file is set up, I'd think it'd be USPCC printed. I find that EPCC and USPCC have different methods for how they create and assemble their tuckboxes especially their non-sideload tuckbox.
But it's exciting to see this deck out. I hope it's the usual DB deck price of 11-12$/2 decks which isn't too bad.
Actually, as I look at the images here, I'm thinking that it's NOT USPC.
First, check out the uncut sheets. Notice how the green sheet ends in a very narrow margin? I own a number of USPC uncuts and none of them have a margin like that. Granted, someone could have cut the sheet there, but why? And look at the top edge as well - it just doesn't resemble a USPC sheet.
As far as the tuck box, we really can't tell. While it does appear to be a top loader with a flap at the bottom (the EPCC template doesn't have bottom flaps, utilizing side flaps instead), it's also possible we're looking at a homemade prototype. The bottom flap does appear to be held in place by the thumb of the hand holding the box.
Maybe I'm just hoping he changed printers?