Perantucci Tuba Mouthpiece PT-36 Silver Plated
 
These mouthpieces are all new stock and some also include the "Mr Tuba" stamped on the mouthpiece from the factory.
 
Perantucci say the following about this mouthpiece.
Model PT-36 is ideal for large-bore instruments where fast response is desired.  The cup diameter to volume relationship is unique. The depth is necessary for good tone quality and solid resonance. Response is good and sound clear with obvious centre. Narrow rim provides remarkable flexibility

Cup Diameter: 33.00 mm, medium depth and funnel shaped
Rim: 7.50 mm, medium sharp inner, rounded outer edge
Throat bore: 8.30 mm
Resistance: Moderate
Standard Large Shank for most European Models (recommended for most instruments)
 
Please note - For mouthpieces purchased online I am not able to offer trials - if you are looking to try this mouthpiece, please contact Mr Tuba at sales@mrtuba.com
 
These mouthpieces are all new stock.  They may have the odd mark on the shank where they have been inserted into an instrument in-store and the box maybe a little tatty, but they are all new stock.
 
I find mouthpieces impossible to take photographs of due to the reflections, so the image shown in the stock image from Perantucci.  I am happy to supply additional images if you send me a message.