The 2 semi-inletted stocks top and bottom, are of a much later manufacture date and are routed out to accomodate adjustable trigger mechanisms, such as a Timney by the factory. This had become the norm after the 60's. The earler, middle one is made to accomodate a military style trigger only, as was the norm in the 50's. Also stocks were sold in varying degrees(%'s) of inletting. As I recall, from approx. 50% to 95%. The "RAILROAD TIE" detail in the forearm is very hard to cut by hand and only an experienced stockmaker can do it right. Quite frankly the rest of the stock does not show that level of expertise, therefore my money is on a factory stock with some degree of inletting, finished by a capable gunsmith.
