I have one I smoke all the time , great pipe . If you ever want to get rid of your tadpole , I am officially colllecting them now .
Interesting theme, and a bit of a challenge. Purdy was never a prolific carver and the tadpole was a demanding shape. If you set aside the handful of smaller sandblast versions he made I doubt many others exist. I know of a few, but only Will could say how many were made.