Arguably the most popular and famous mouthpiece used by the legends of jazz such as Arnett Cobb, Dexter Gordon, Johnny Griffin, Lockjaw Davis, etc. 

Has a darker and fatter core than the Double Ring, not as much zing on top.
For us it sits right in the middle between the Hollywood and the Double Ring. However, upon your request, various baffle profiles can be used, such as USA Florida (flat step) or late No USA (slightly rolled).