I was able to contact Pauline. Pauline, stated that the wood was not the work of the Winchester custom Shop. So the hunt continues for more knowledge. I was told as I can best recall when I traded for this gun several years ago that the gun had been upgrade in the 60's or 70's. Hoping someone has a 42 that has the same wood checkering and can point me to where it had been upgraded. Thanks for all of the feedback so far.