Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca
And just where did you find these great rings? Oh you don't have to tell the exact location but.... on land, in the water, at a park, parking lot?? Whatever... they are great finds.