Vintage Conn Constellation tenor mouthpiece in a #3 facing. These were the mouthpieces that were included with the early Conn “Constellation” saxophones. Definitely hard rubber as you will notice by the discoloration. Good condition with rails that are perfect, but a small chip out of the tip area.
Chamber is moderately large so I will assume this will have a warmer sound quality. When opened up, this one could be quite good.
No Ligature and Cap included.