Perantucci Tuba Mouthpiece PT-70 Silver Plated
 
These mouthpieces are all new old stock and also include the "Mr Tuba" stamped on the mouthpiece from the factory.
 
Perantussi say the following about this mouthpiece.
Model PT-70 is a fairly deep mouthpiece with a bell-shaped cup. This gives a broad sound with quick response. It is a very comfortable and powerful mouthpiece which features a brilliant sound an is highly recommended for any tuba.
 
Cup: 32.5mm diam. Deep very rounded at bottom 
Rim: Width 8mm. Small with sharp inner rim 
Throat Bore: 8mm
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 the 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.