Dimes (10 cents):
- Before 1965: 0.07234 troy ounces of silver
Quarters (25 cents):
- Before 1965: 0.18084 troy ounces of silver
Half Dollars (50 cents):
- Before 1965: 0.36169 troy ounces of silver
Please note that after 1964, the composition of U.S. dimes, quarters, and half dollars changed from 90% silver to a copper-nickel alloy, commonly known as "clad" coinage.
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