This is a 60’s vintage Berg Larsen Hard Rubber Alto Saxophone Mouthpiece. This piece has been worked on by Doc Tenney, who perfected the original facing of 80. The mouthpiece features the vintage bullet chamber in a size 0. This piece is free blowing with a quick response. The sound is somewhat dark, considering the chamber size and shape, but the classic Berg Larsen sound is still present.
The rubber has oxidized over the years, showing that it is truly made of good quality vintage hard rubber. The mouthpiece has a few nicks and light surface