Antique William and Mary wing chair circa 1725?

So I bought this chair at an "antique" and furniture store for 40 dollars to try my hand at reupholstering it. Considering I bought it at an antique store I didn't think the chair would have much more value to it than the 40 dollars I bought it for. I removed everything down to the bones. The fabric that was on it when I bought it was not original. I continued to strip the finish on the chair, it was so dark that it was almost black on the carvings and it was lighter on the arms. After I had stripped it I noticed very light hand writing on the back of the frame that says "slat 1725."  Then I removed wood that had been nailed into the frame that was obviously not original to the piece which revealed a stamp that says "1725." Had I seen this earlier, I never would have touched the finish. I would love to know if the chair is worth anything and if it is how much? Should I get it appraised by an expert? Should I take it to an expert to restore/ refinish it the right way? I'm not sure what to do. Any help would be appreciated!!! Thank you!

Poor