I was posting just to show the variety of tools that have this shape. I hope you get answers to your question, though. With a curved end, perhaps it was used to peel away layers? Cut the cork into circular patterns? The problem with tools are that they can be extremely specific in use. In other words, if this cork cutter is used in a wine bottle factory where the corks are carved to fit the bottle, etc, etc, You get the idea-
