Recently picked up 6 silver Canadian dimes. Years are 1960, 62, 64, 65, 66, and a 1968. The first 5 I KNOW are 80% silver, but the 1968 I am having some trouble with. I cannot tell if it is 50% silver. I know that some 1968's were clad, and the rest 50%. I did a "bounce test" and it does sound different than a standard clad Roosevelt dime, but it doesn't have the same *ting* sound that a 40% silver Kennedy has. Maybe it is just the size? Is there any for sure way to tell? Thanks! -Rob.
