I've bought a good Copeland high D in brass, only a year old, it's serial No 3949. I bought it a few weeks back, i really like this whistle, it's my only high D. But i'm allergic to brass, never new it! I'm willing to swap my Copeland in brass+money for a sterling silver high D.
If you're not interested in a swap+money, i'd be more than delighted just to buy a sterling silver high D for a good price!