Honestly, it looks like somebody just printed them on with their home computer. Not saying it ain't a pt57e, but the asian letters make it look really strange. I don't think head does that. It might be the pt57e, and the previous owner just applied this on, or it might not be and could just be a regular retail stock or some other pro stock or a TGK stock. Who knows. The serial pallet looks very distinct and I have a few and none look like this.
I wish I could juggle a ball on the stringhead of your frame. I could tell you for sure if it's a pt57e or not just by the feel and flex.