1964 Blank Patterns

About This Coin

Occupying the 4th of 15 years in the Modern Patterns (1943 to Date) series, the 1964 Blank Patterns document the final chapter of silver circulating coinage in the United States. These experimental pieces tested various planchet compositions as the Mint prepared for the seismic shift mandated by the Coinage Act of 1965. Produced during the post-war economic boom when surging silver prices made traditional 90% silver coins worth more as bullion than currency, the 1964 blanks reflect the urgent challenge facing Mint officials: finding a replacement alloy that would work in existing vending machines while maintaining public confidence. The obverse and reverse feature various experimental designs exploring proposed changes, with different metallic compositions providing data on striking properties, wear resistance, and visual appearance. Designed by various U.S. Mint designers working under intense pressure, these patterns represent the engineering work that ultimately produced the copper-nickel clad coinage Americans use today. For pattern specialists, the 1964 Blank Patterns capture a pivotal transition that permanently altered the composition of American money.