Tuba mouthpiece from a musical instrument manufacturer in Cologne, Germany. This is a medium size, numbered 0 to 6, suitable for F tubas. - Model: Tuba Mouthpiece Meister Anton 22/3 Thank you for viewing. This is from the first lot that came into Japan. It has been gold-plated later, but the plating has thinned over time. It is old, so it shows some wear and tear.