Found this at the last dig at the dump. At first I thought that it was some type of carpenters marking chalk. But when I cleaned it, it seems to be made of stone, ceramic, or something. Any ideas? Buster[attachment=001.JPG] [attachment=002.JPG]
It was hard to see at first but with it being flat on both sides I also agree that it is part of a sharpening stone. I'd wager that it was made like that rather than being heavily worn, and may have originally looked something like this double-tapered stone (for sharpening curved blades like scythes or sickles):
I've got a few that were 'ole advertising freebies, but the last time I used one it was for poking holes in the dirt to plant baby onion bulbs. Worked pretty well, heh.