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Those second pics of the possible scraper show that it is not a tool !! Even though there is one edge that may have some flaking it would not be any kind of a finished tool !! The thickness would make it uncomfortable to be held in the hand and the edge shows that it was probably just a broken piece of stone !! Or they could have started something and it just decided it was not a good idea !! Tools must be held comfortably in the hand !! Try holding this one and I think you will see what I mean !!