Useful information:
The First Day of Issue Postmark of the Commemorative Issue "2023 UNESCO Maria Callas Anniversary (9/2023)" will be available from 12/10/2023 until 11/10/2025.
For the cancellation of your postal items with the First Day of Issue Postmark, you can visit the Post Office of Syntagma Square, Mitropoleos 2, 105 63 Athens, every Thursday from 9:00 to 13:00, for as long as the series of stamps circulates. Alternatively, you can send your postal items free of charge to the Philatelic Directorate, 100 Aiolou, 2nd floor, 101 88, Athens.
Requests for cancellations on postal items with the First Day of Issue Postmark are accepted until the date of withdrawal of the series (the mailing date is evidenced by the postal marking of the postal service). The philatelic items must bear the name and full address of the sender, so that they can be returned to them. Please make sure to note the indication "PHILATELIC OBJECTS" on the shipping envelope.
ATTENTION! To obtain an imprint of the First Day of Issue Postmark on a postal item, you must have affixed stamps of at least the minimum value of B’ priority domestic mail (20 gr), today €1,20.
Find
here more information about the stamp issue.