Serial # H14625B It is unusual to have the serial marked vertically. It is marked on both the LH and RH keyed joints. I would guess the age of the instrument to be somewhere around 1925-1940. Announcement: Anyone out there who knows about Penzel-Mueller history, please contact me! An eBay ad gave me the information that PM closed as a company in 1950. It is possible that the Artist model was their professional line. I see one of that model that came with an articulated C#/G#. Another later wooden clarinet is the Brilliante.There are several unusual things about this clarinet, so that I wonder if it might have been partially made in the USA.
[6Jun2012 Now I don't think so! See Monopole by Couesnon and compare the serial number!]
Barrel: 66.9mm No wonder I tended to be flat on a few notes. I normally play a 64mm barrel.
Bore LH joint top: 14.95mm
Bore LH joint at bottom: 14.7mm
Was Penzel-Mueller an early experimenter with poly-cylindrical bores? Answer: Yes. See the review of H-408-B.
The bell is plastic.
Intonation summary: This is professional level tuning accuracy, even by today's standards. The little bit of flatness is due to my playing so loud. No wonder Penzel-Mueller horns are so prized.
Key work quality: Very pretty nickel silver. The key work is good, but will require reasonable care. This is not a horn for marching band.This clarinet is most appropriate for: Intermediate to advanced players. Because of the wide bore, this instrument plays freely, and would be the kind of clarinet that may have been intended for 1930's jazz. It has a very nice mellow or dark sound. This would be especially nice for an adult returning to playing.The original case is a clue to my guess that this horn was made before 1933.