Old and well sharpened. It would be worth a pretty good chunk of change if it was found in Florida. I found a 3" Bull Tongue Simpson down here that is in the book, "Best Of The South" and listed for $2400. What is the material? It looks like Coastal Plains with a white patina on it. If you want to see what it really looks like without damaging the patina just soak it in mineral oil for about a week. The patina will disappear and you can see the real color of the stone. Then just let the oil dry and the patina will come back.