Italian ORSI B♭ Clarinet

This is an Italian clarinet.
It is an ORSI clarinet.
Comes with a mouthpiece stamped PrIms, an unmarked ligature, and a cap.
The hard case is made by Nikkan, Japan.

All notes can be produced across the entire range, but one of the trill keys moves but is not very functional. Beginners might not notice.
As shown in the photos, there are two rings that have dried out and come off.
The playing feel is similar to Yamaha's YCL605 or 405.
The material is, of course, high-quality grenadilla wood.
Surprisingly, when the bell of this Orsi is attached to a Buffet Crampon or Yamaha instrument, the sound becomes tighter and more cohesive. It's strange.
Please note that my impression of the Orsi clarinet is purely my personal opinion.

For now, it is considered a junk item.
It would be best to have it overhauled.
Italian instruments are rare and stand out. Please give it a try.

Thank you for looking.