90% Silver Coins refer to coins minted in the United States containing 90% silver content by weight. These coins were predominantly minted before 1965, including dimes, quarters, and half dollars. Renowned for their historical significance and intrinsic value, 90% Silver Coins are sought after by collectors and investors alike for their silver content and numismatic appeal. Additionally, their scarcity due to limited minting and the passage of time contributes to their allure and potential investment value.