Penzel-Mueller
See also the Penzel-Mueller Albert System pages.
The circa-1949 catalog PDF attached below shows the following models:
- Super Brilliante, listing at $300
- Brilliante: $250
- Artist: $231.50
- Empire: $199
- Bel Canto: $179.50
The Penzel Pacemaker might have been made by Penzel-Mueller or might have been after the company closed. Because Mueller is not listed, I have given it a separate page.
There were some clarinets made in cooperation between Penzel-Mueller and Pruefer. See one here.
These pictures show a P-M with special keys for forked fingerings, articulated C#/G# and the left Ab/Eb pinkie key.