Interesting Flint Scraper

[docmann]

Here is an interesting little scraper found out in extreme western Oklahoma. It's an eye-catching white scraper with an interesting feature. Notice along the cutting edge a rust color. I've often wondered if this could represent staining from the iron component (hemaglobin) of animal blood. It seems to be only on the cutting edge. I would like to solicit an opinion from some of you more learned archeologists. I'm not certain that blood will even stain flint. I suppose there are tests available that would determine this but I would sure hate to damage the piece. At any rate, it is an extremely attractive scraper. Any opinions?