This is months old now, however I wanted to follow up on it and close the loop for any others that may read the thread.
Herschel - the other digits comment above that created some confusion was simply my attempt at letting you know that the numbering existed as you suggested.
Based on the wealth of info over these several posts, it appears this is still original, except the magazine, which I intend to rectify soon.
I think Herschel's suggestion that the rifle was in private ownership and sent in for the m2 upgrade makes sense. That may also explain how the original barrel from May of 1922 is still accompanying the rifle? Does anyone know if a private owner upgrade would have received the old parts back, such as the original barrel?
Lastly - I cannot for the life of me figure out what the line around the stock is all about. I can say for absolute certainty, that the stock was not lengthened or shortened . I thought it looked like a pencil mark , but i wasn't able to erase it, and when I tried to clean it off with the above recommended cleaner, it polished up like any other part of the stock would, that being it's still noticeable. It's not a cut of any sort. Does anyone know what that can possibly be?
Considering the stock has not been altered, would this have a detrimental effect on the collect-ability?
Thanks for the responses! Unlike so many forums, this group is always helpful, and professional! I wish more forums would operate with this level of class.