Beautiful almost new example of a rare Streamline Brilhart Ebolin alto mouthpiece. Stamped 3*, it measures like a Meyer 5 tip at .074″ on the original facing. This is often the case with Brilharts, where you only know the tip by measuring.
This mouthpiece plays great with a beautiful warmth and fullness that also does not lack projection. Brilharts like this are among my favorite vintage alto mouthpieces (along with Meyer and MC Gregory).
If you happen to want the rare and collectible original Brilhart BB screws streamline alto ligature and cap, I have one in my collection that fits this mouthpiece that I would be open to selling.