If it is an original Parker stock, the serial number will be stamped in the wood under the trigger guard tang. A PGCA letter for forty bucks will give information about a wood upgrade, if original. I have a 16 gauge VH with a little bit of figure in the buttstock that is proved to be an original upgrade by a PGCA letter. However, my stock is nowhere near as nice as yours. Requests in Parker Brothers orders for nice wood are not unheard of. Get the letter.