bonanza,

I saw a nice "working" 450/400 on GunsAmarica just yesterday at this URL.

I also looked at it on Schwandt's website, where more pictures are available.

http://www.schwandtclassicarms.com/

That might be the one you want. It's a 3 1/4", and not a 3", if that matters to you. I have no idea about its condition or value. Just saw these web pages.

Best,
Curl