Boy, ain't that the truth!!Not a K98. The trigger inletting is wrong and the placement of the bolt handle cutout is in the wrong place.
I'm not sure what you have. What I can say is who ever tryed to glass bed the rifle had no idea of what they were doing.
Herters sold stocks. They even sold rifles built on Yugoslav and BSA Mauser actions.I don't know if Herter's offered stocks but, we now know for certain they sold butt plates. I didn't know that before.
It isn't for a Moisin.
I'm not familiar enough with the various iterations of Mausers to suspect which model it might be but, it screams one of them to me, no?