In 2015 the US Congress authorized the minting of a silver dollar to commemorate the 75th anniversary of the establishment of the March of Dimes. A $10 surcharge was imposed on the sale of each coin with all surcharge proceeds donated to the March of Dimes.
As with most recent Commemoratives, the Mint struck these dollars in both Proof and Uncirculated finish, with a total authorized mintage of 500,000 coins. Uncirculated coins were minted in Philadelphia and Proof coins were minted at West Point.
From the Mint Web site:
Founded by President Franklin D. Roosevelt on the eve of World War II as the National Foundation for Infantile Paralysis, the March of Dimes was instrumental in the eradication of polio from the United States. Since then the March of Dimes’ mission has been the prevention of birth defects, and it has been at work with new research and discoveries to help every generation of babies be born healthy and grow up strong.
The obverse, designed by Paul C. Balan, depicts the conjoined busts of President Franklin D. Roosevelt and Dr. Jonas Salk, two leaders in the fight against polio. The inscriptions are “LIBERTY,” “IN GOD WE TRUST“, and “2015.” Just below the year is the mint mark “P” for Philadelphia or “W” for West Point. On the lower left bust of Roosevelt are the designer's initials “PCB” and to the lower right of Salk’s bust are the engraver's initials “MG” for Michael Gaudioso.
The reverse, designed by Don Everhart, depicts a baby cuddled in the hand of a parent, representing the foundation's dedication to the health of babies. The inscriptions are “UNITED STATES OF AMERICA,” “$1,” “MARCH OF DIMES” and “E PLURIBUS UNUM.” To the left of $1 are the designer's initials “DE”.