Issued in 1964, this Vatican City stamp commemorates the Holy See’s participation in the New York World’s Fair (“Neoeboracensem Expositionem Participat”). The design features the celebrated Pietà sculpture by Michelangelo, one of the most iconic masterpieces housed in St. Peter’s Basilica. Printed in rich monochrome engraving, the stamp highlights the emotional depth and sculptural detail of the Renaissance work. The denomination L.50 reflects mid-1960s Vatican postal rates and exhibition-themed commemoratives of the period. A classic thematic piece appealing to collectors of art, Vatican issues, and world exhibition stamps.