DG-400: alto model
DG-500: tenor model
DG-600: Baritone model
GL: gold lacquer
BN: black nickel plate with silver plated keywork
SP: Silver plate
Rare examples in rose gold

  • Bb Tenor 020xx Bb Tenor  020xx
  • Bb Tenor 003000 Bb Tenor 003000
  • Bb Tenor 00380 Bb Tenor 00380
  • Bb Tenor 003820 Bb Tenor 003820
  • Bb Tenor 003925 Bb Tenor 003925
  • Bb Tenor 00746 Bb Tenor 00746