This 1962 First Day Cover features the 4¢ Atomic Energy Act commemorative stamp honoring the late Senator Brien McMahon, cancelled in Norwalk, Connecticut on July 28, 1962. The Artmaster cachet depicts McMahon with an atomic symbol and the inscription “Father of Our National Nuclear Policy.”
Brien McMahon served as a U.S. Senator from Connecticut and was the principal author of the Atomic Energy Act of 1946, legislation that placed nuclear research and development under civilian control after World War II. His work shaped America’s postwar nuclear policy during the early Cold War era.
The stamp design pairs McMahon’s portrait with the atom symbol and the phrase “Peaceful Uses,” reflecting the dual emphasis on both national security and civilian applications of atomic energy in the 1960s. The Artmaster cachet adds a detailed portrait and biographical text rarely found on standard FDCs of the period.
A fine addition for collectors of nuclear history, political figures, or Artmaster cachets, this cover remains in clean, collectible condition with a clear first-day postmark.
