Due to the limited amount of time available to design the new coin, the Roosevelt dime was the first regular-issue U.S. coin designed by a Mint employee in more than 40 years. Chief Engraver John R. Sinnock was chosen, as he had already designed a Mint presidential medal of Roosevelt. Sinnock's first design, submitted on October 12, 1945, was rejected, but a subsequent one was accepted on January 6, 1946.
The dime was released to the public on January 30, 1946, which would have been Roosevelt's 64th birthday. Sinnock's design placed his initials ("JS") at the base of Roosevelt's neck, on the coin's obverse. His reverse design elements of a torch, olive branch, and oak branch symbolized, respectively, liberty, peace, and victory.
Controversy immediately ensued, as strong anti-Communist sentiment in the United States led to the circulation of rumors that the "JS" engraved on the coin was the initials of Joseph Stalin, placed there by a Soviet agent in the mint. The Mint quickly issued a statement refuting this, confirming that the initials were indeed Sinnock's.
Another controversy surrounding Sinnock's design involves his image of Roosevelt. Soon after the coin's release, it was claimed that Sinnock borrowed his design of Roosevelt from a bas relief created by African American sculptor Selma Burke, unveiled at the Recorder of Deeds Building in Washington D.C. in September 1945. Sinnock denied this, claiming that he simply utilized his earlier design on the Roosevelt medal.
With the passage of the Coinage Act of 1965, the composition of the dime changed from 90 percent silver and 10 percent copper to a clad "sandwich" of copper between two layers of an alloy of 91.67 percent copper and 8.33 percent nickel. This composition was selected because it gave similar mass (now 2.27 grams instead of 2.5 grams) and electrical properties (important in vending machines)—and most importantly, because it contained no precious metal.
Soon after the change of composition, silver dimes (as well as silver quarters and half dollars) began to disappear from circulation, as people receiving them in change hoarded them (see Gresham's law). Although now rare in circulation, silver dimes may occasionally turn up in customers' change.
Starting in 1992, the US Mint re-introduced silver coins in its annual collectors sets. This included a 90 percent silver proof Roosevelt Dime, Washington Quarter(s) and Kennedy Half Dollar, a series that continues today.
Since 1946 the Roosevelt dime has been minted every year. Through 1955, all three mints, Philadelphia, Denver, and San Francisco produced circulating coinage; production at San Francisco ended in 1955, resuming in 1968 with proof coinage only. Through 1964 "D" and "S" mintmarks can be found to the left of the torch. From 1968, the mintmarks have appeared above the date. None were used in 1965–67, and Philadelphia did not show a mintmark until 1980 (in 1982, an error left the "P" off a small number of dimes, which are now valuable). To commemorate the 50th anniversary of the design, the 1996 mint sets included a "W" mintmarked dime made at the West Point Mint. A total of 1,457,000 dimes were issued in the sets.
In 2003, a group of conservative Republicans in Congress proposed removing Roosevelt's image from the dime, and replacing it with that of President Ronald Reagan, although he was still alive. Legislation to this effect was introduced in November 2003 by Indiana Representative Mark Souder. Amongst the more notable opponents of the legislation was Nancy Reagan, who in December 2003 stated that, "When our country chooses to honor a great president such as Franklin Roosevelt by placing his likeness on our currency, it would be wrong to remove him." After President Reagan's death in June 2004, the proposed legislation gained additional support. Souder, however, stated that he was not going to pursue the legislation any further.