Metal mouthpiece
  Soprano Alto Tenor Baritone Clarinet
Patent-V XMSV XMAV XMTV XMVB
Patent-U XMSU XA3U XT3U    
Amateur class MS MA MA-1 MT      
Semi-pro class MJS MUA   MUT TQ-1    
        TQ-2    
Professional class MJS-C MJA MKA MJT TQ-5 MJB  
Artisans
Performer class
MKSD MKAD MVKA MKTD MKTE   MBKC
  MKAE MKAF TQ-3 MKTF    
 
Bakelite mouthpiece
  Soprano Alto Tenor Baritone Clarinet
Patent-V XBSV XBAV XBTV    
Amateur level BS BA BT    
Professional level BS-C BVA BT-1    
Professional play
level
BVS BJA-C BJT BQ BKC
BAO-C
Artisans
Performer class
BJS XBRA XBCT    
XBCA XBRT
  XBJT
BKA BVJA BKT BTQ