I found a stainless Case medium stockman (6344) from the 80's at a garage sale for $5. It had two good blades that don't even seem to have been sharpened, so I figured it would make a cheap user.The tip and the spine of the sheepsfoot blade looks like they were melted by contact with live current. Would the rest of the sheepsfoot blade be affected by contact, or can the tip be restored to useful by stoning off the bad parts reshaping the spine and the tip? Thanks.