Rare vintage Dukoff metal ridged chamber??

[jazzeux]

Hi,
I recently bought a really special mouthpiece. I got a rare Dukoff ridged chamber mouthpiece. This mouthpiece is in metal and have some ridges in the chamber. "Dukoff Hollywood" is also written on the shank. When I tried to find info on the internet, I was unable to find anything. Anyone have information on that mouthpiece? As I tried it, I can say that this mouthpiece sound really nice, as a darker soubd than the usual Dukoff but with a lot of projection. If you got any info, please reply.

[Stencilman]

Probably the "fluted chamber" model, for info, look here:
www.mouthpieceheaven.com/misc/dukoff.htm

[Stencilman]

Bobby Dukoff also made a "Super Power Chamber" metal piece that had the fluted chamber. He no longer manufactures these.