This 25 Lire Vatican City stamp, issued in 1964, commemorates Pope Paul VI’s historic apostolic visit to Bombay (Mumbai) for the 38th International Eucharistic Congress. Rendered in a rich green tone, the design features the striking “Holy Cross Monument” and the palm-lined Marine Drive, symbolizing the meeting of cultures during this milestone journey. The Latin inscription PAULUS VI MISSIONARIUS APOSTOLICUS highlights the missionary significance of the visit. A desirable thematic piece for collectors of papal visits, India–Vatican relations, religious congresses, and 20th-century ecclesiastical postal history.