This is a super rare and very cool vintage Berg Larsen “Slant Signature Precision” model for baritone sax. The mouthpiece is in great shape. The piece features the classic Berg Larsen bullet chamber, flat slanted side walls and a long rolled baffle below the tip rail. The coolest thing about this piece is it is a T baritone model. This indicates that the mouthpiece can be played with tenor reeds if the player so chooses.
The Berg has a very robust rich sound and is also quite powerful. Projection and volume control on this piece is quite exceptional.