Native American stone artwork two man arrow shaft straightener

I been working in another area in my home village away from laurel creek and went to muddy creek down stream found many interesting stones hand carved with lines straight and angled and tools this artifact was Found in bethania north carolina by dannytwofeathers aka daniel hamel of last year in the spring of 2019 there is one break through of this stone art it is actually a two person arrow shaft straightener for making the shafts for the arrowheads it would been used with two people facing eachother one working the top the other working the bottom they would had been using river cane do to the cane found in the area the thickness and depth in the lines it had this purpose the men finding the cane and putting the cane in the lines working the cane to be straight the shafts would then be used for there arrowheads either for hunting or preparing for battle this is one piece of history i thought you all might wanted to know i am glad to share you all in my find of a lifetime the unpolished would been laying down the polished would been facing up this is more than a piece of stone art but a working artifact for straightening shafts for there arrowheads