What is the answer to "Old-fashioned invitation enclosure, in brief" in the NYT Crossword?

The answer to the NYT Crossword clue "Old-fashioned invitation enclosure, in brief" is SASE (4 letters).

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NYT

Old-fashioned invitation enclosure, in brief NYT Crossword Clue

Across clue · from the August 24, 2025 puzzle

Stuck on “Old-fashioned invitation enclosure, in brief” from the New York Times Crossword? Here is the verified answer:

Answer

SASE

4 letters · Across · last seen August 24, 2025