JK (Yacht Car): 23CK Horn Mouthpiece (Inner Gold)

※Price has been slightly revised.

JK (Yacht) : 23CK Horn Mouthpiece
Cup Inner Diameter: 17.25mm
Cup Shape: V Cup
Throat Diameter: 4.4mm
European Shank

This is a mouthpiece that came with the instrument I purchased.
The color is slightly faded, but the cup/rim is gold-plated (the box also seems to indicate the cup/rim is G (Gold)).
This is a mouthpiece with a slightly smaller cup inner diameter (17.25mm) that is not commonly found these days, and it greatly helped me in the high register.

Chemically cleaned. Please purchase with the understanding that this is a used item.