March of Dimes Dollar 2015 W Silver $1 Proof Coin The obverse design–representing the past–depicts a profile view 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.” The reverse design depicts a baby cuddled in the hand of a parent,representing the foundation's dedication to the health of babies everywhere. The inscriptions are “UNITED STATES OF AMERICA,” “E PLURIBUS UNUM,” “$1” and, “MARCH OF DIMES.” Coin Specifications Weight: 26.730 grams nominal Diameter: 1.500 inches or 38.10 mm Composition: 90 percent silver, 10 percent copper Mintage limit: 500,000 across all product options Mint condition Item comes as shown in photos