I can't tell you if it's original or not; but can add this. All Smith stocks were turned on a stock machine; and on all original uncut Smith stocks, there will be "dimples" in the wood from where the butt stock was secured in the machine (maybe drew will post a pic of the raw end of an uncut butt stock). Also, on graded guns where guns weight or balance was specified; achieving those specs often required either removing wood from the stock, or adding weight to the stock. If weight was added, a hole was bored in butt stock and filled with lead as required; and to reduce weight a hole (sometimes two) were drilled as was necessary. In guns with pads and/or a hard rubber butt plate, nothing further was done; but if the customer had also specified a checkered or skeleton butt, then those modifications had to be repaired/filled. What you see here is where the holes from the stock profiling machine, and a plug from either lightening or weighting the stock have been repaired so that the butt could then be checkered.