Keith, you really need to try to make your pictures smaller. Try hosting them to Photbucket and then make them smaller before you post them here. I really like looking at your finds but the pics are always to big for the screen. You might also try downloading a Photo Resizer from the net. Go to Google and type in Photo Resizer and there are a bunch to choose from. Also try putting your camera on Macro, the one that looks like a "flower" and then set up about 15 inches from the object and you will get clearer pictures. Not trying to be a smart a$$, just trying to help you out.
As for this piece, from what I can see in the pics it loks like it may have a Knife edge on one side or it may just be a Side Scraper. Hard to tell.