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United States First Day of Issue Postmark, July 1, 2023
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United States First Day of Issue Postmark, July 1, 2023

United States · 2023 ·

A circular black postmark featuring 'FIRST DAY OF ISSUE' text, 'FDI', and the date 'JUL 1 2023', indicating its use on the initial release day of a stamp.

First Day of Issue postmarks are applied to mail on the first day a new stamp is valid for use, serving as a significant marker for philatelists and postal historians.

Image: <a href="//commons.wikimedia.org/w/index.php?title=User:Boris1951zz&amp;action=edit&amp;redlink=1" class="new" title="User:Boris1951zz (page does not exist)">Boris1951zz</a> · License: CC BY-SA 4.0

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