Pretty sure this is cocobolo but stained a bit dark. Near perfect. Fits Buffet and similar.
17) Backun Traditional Cocobolo Clarinet Bell W/ Voicing Groove. Buffet R13A
#49 Backun 66 Ringless Standard Clarinet Barrel--Buffet R13 (Standard) Fit!
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Backun Traditional Cocobolo Clarinet Bell