Olds Ambassador Cornet Trumpet 3rd Slide Finger Push Rod (Finger Ring) with Lyre Screw

Olds Ambassador finger kick ring with lyre screw, AKA finger pull ring. 1 nickel ring with lacquer screw, Not for Yamaha or current horns (to fat).  11/64" shank, fits Olds & Bundy.  Slide in picture not included.