I don't know if it will make it more exciting to you, but it's a ceramics tool, kinda industrial grade. I have a set of three that I got to work on some terra cotta architectural murals some years back. I don't have this particular shape, but this is the same pattern, toothed on one side, flat on the other. The usual size is much smaller, and an even smaller size is made for really tiny details. Regular sized versions of this are listed as "ribbon tools."
If that doesn't make it interesting to you, it is interesting to me.