Can't be sure but asking around, these appear to be Key Pearl Touch Piece Holders for early MK6 Saxophones.
Selmer Paris Saxophone Bushing & Spring to take Pivot Screw - Free UK Shipping
Selmer Paris Saxophone Alto SA80 III Plastic Regulation Screw - Free UK Shipping
Selmer Paris Selmer Paris Tenor Saxophone Mouthpiece [Concept]
SELMER PARIS Selmer Paris Alto Saxophone Mouthpiece S80 C**
Selmer Saxophone Small Key Pearl - 11.2mm - Domed - Selmer Paris Saxophones
Selmer Paris Alto Saxophone Spring Set with Spring Screws - Free UK Postage
![Selmer Paris Selmer Paris Tenor Saxophone Mouthpiece [Concept]](https://images.buynet.work/thumb.php?i=389949869&s=240)
