Wouldn't pine be a poor type of wood for checkering?
Anyhow, I'm just surprised that it has 2 different kinds of wood. If someone did make a stock for it at some point and decided to go with a lower grade of wood than was on it, I'm surprised that they would go to the trouble of even checkering it let alone fit it as well as they did. The in-letting and checkering is not amateurish.