I'm in the camp of non-playable. I'll bet my limit that the sound isn't good enough to warrant using it as a regular instrument.
Definitely worth leaving it as is, and sticking it in your quiver as a historical instrument. And not messing with its finish at all
Opinions vary.
Advice on using a whistle with a solid lead block on fipple
Re: Advice on using a whistle with a solid lead block on fipple
Remember, you didn't get the tiger so it would do what you wanted. You got the tiger to see what it wanted to do. -- Colin McEnroe