1946-64 U.S. 10¢ - Irradiated Silver Roosevelt Dime - New York World's Fair

  • Country: United States
  • Period: Federal Repuplic (1776-Date)
  • Type: Encased Coins
  • Years: 1949-1967 (Approximately)
  • Denomination: 10 Cents = 1 Dime
  • Currency: United States Dollar (1785-Date)
  • Composition: .900 Silver
  • Edge: Plain
  • Obverse: Plastic case with white lettering "N.Y. World's Fair 1964-1965 neutron irradiated dime; Obverse of a dime in the center
  • Reverse: White neutron symbol at center "Atomic Energy Commission United States of America" around
Made by a machine at Oak Ridge National Laboratory between approximately 1949-1967 as souvenirs; Many varieties exist based on the dime inserted into the machine. The dime would be inserted into the machine and then be irradiated for a few seconds before being put near a geiger counter to show its radioactivitiy before being handled by an assistant with gloves and snapped into a case and handed to the visitor.

A dime irradiator occasionally took to the road. For example, one of these was set up at the 1964 World's Fair in New York. Visitors to the World's Fair exhibit who irradiated their dimes were given a blue plastic carrier with an atomic logo on it to hold them. Since the carriers were not sealed, there is no certainty that a dime they hold today had ever been irradiated.

At some point, the blue plastic holders were also used at the museum itself. Perhaps the switch was made from the aluminum case sometime around 1964?

*These coins do vary in condition, dates, and toning. The coin you receive will be selected at random from our available inventory.*

*Coin condition is based on our professional opinion. Pictures are representative of the coin that you will receive, actual coin may differ slightly, and serial numbers will vary*