This 1976 First Day Cover features the U.S. 13¢ Clara Maass commemorative stamp, postmarked on the official first day of issue, August 18, 1976, in Belleville, New Jersey. The cover bears a block of four stamps with a striking "FIRST DAY OF ISSUE" handstamp across the center pair.
Clara Maass, a courageous Army nurse, gave her life in 1901 while participating in yellow fever experiments in Cuba. Her sacrifice helped confirm that mosquitoes transmitted the disease and advanced the development of protective vaccines still used today.
The cachet depicts a globe constructed entirely of envelopes beneath the bold "FIRST DAY COVER" legend, a classic Artcraft-style design that ties the stamp's nursing theme to the worldwide postal network.
A fine addition for collectors of medical history, nursing, or women-in-history topicals, this cover remains in fresh condition with sharp postmarks and vibrant stamp colors.