Model

YZ/HR-640

Key of Eb,
11.73mm (0.462") Bore,
204.7mm (8") Yellow Brass Bell
Nickel Plated Brass Pistons,
Gold Lacquer.

YZ/HR-640S (Silver Plated)

YZ/HR-840

Professional Model,
Key of Eb,
11.84mm (0.466") Bore,
204.7mm (8") Rose Brass Bell
(One-Piece Hand-Crafted),
Rose Brass Leadpipe,
Genuine Mother-of-Pearl Finger Buttons,
Monel Pistons,
Gold Lacquer.

YZ/HR-840S (Silver Plated)