Serial # none, but there is a batch mark: 10A. Thanks to Frode in Norway for giving me the opportunity to review this clarinet!
Bore LH joint top: 14.3mm
Bore LH joint at bottom: 14.65mm This is the reverse of poly-cylindrical!
The S.A. was probably a student-level Couesnon product. I wonder if the “A” stands for Army, as there is a built in hole for a marching lyre and the bell is made of hard rubber. I would also say that the S.A. was made around 1935.
Couesnon traits include
Intonation results taken when playing loud and not lipping. See how to interpret these results on the Model Comparison Page.
For this test, I pulled 1mm at the barrel and 1.7mm in the center for this horn.
Intonation summary: As long as this is pulled out in the center, this is not bad intonation. For the era in which this clarinet was made, this was quite good intonation. A smart player will be able to adjust to play in tune.
Key work quality: OK quality nickel silver keys as far as appearance and sturdiness. However the three larges key cups on the right hand are not designed well, so that the the pad must fit down more into the pad cup on the outer edge than on the hinge side. Take care in assembling and disassembling.
This clarinet is most appropriate for: Beginning to intermediate players.