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| The use of Latin inscriptions only |
| The depiction of the reigning pope’s portrait |
| The inclusion of the umbraculum and crossed keys in the design |
| The issuance of stamps with no monetary denomination |
Your answer was: The inclusion of the umbraculum and crossed keys in the design. |
Answer: ![]() In the world of philately, few events are as symbolically rich and ceremonially significant as the issuance of stamps during a "Sede Vacante" — the period between the end of one papacy and the election of a new pope. The Latin term "Sede Vacante," meaning "the seat being vacant," refers to the interregnum when the papal throne is unoccupied. During this time, the Vatican issues a special series of stamps and postal memorabilia that are both functional and deeply symbolic. In 2025, the Vatican's Philatelic and Postal Service released a commemorative set to mark the Sede Vacante MMXXV. Among the items were two special envelopes (buste-ricordo), each bearing stamps with distinct denominations and designs. One envelope, labeled PV/SV1A, featured stamps valued at €1.25 and €3.20, while the other, PV/SV1B, bore €1.30 and €2.45 stamps. Both envelopes displayed the emblem of the Sede Vacante — a striking image of the Apostolic See’s coat of arms, which includes the crossed keys of Saint Peter beneath an umbrella-like canopy known as the “umbraculum.” This emblem is used exclusively during the interregnum and symbolizes the temporary governance of the Church by the College of Cardinals. The stamps themselves were issued on April 28, 2025, and were accompanied by a circular postmark with a 38 mm diameter. The cancellation design was inspired by the Pavilion of the Apostolic See and included the inscriptions “SEDE VACANTE,” “DIE EMISSIONIS 28.04.2025,” and “POSTE VATICANE.” Collectors could purchase the envelopes individually or as part of a limited-edition illustrated folder, which measured 20 x 27 cm and opened vertically in two panels. |