Enter a clue or pattern or both:
The Clue
Features of some prized memorabilia (10 letter answer)
The Answer
AUTOGRAPHS
Tags
Notes
The answer AUTOGRAPHS is so rare that it appears less than once every 2500 puzzles.
Definition
AUTOGRAPH as a noun:
1. something written by one's own hand
2. (autograph, John Hancock) = a person's own signature
AUTOGRAPH as a verb:
1. (autograph, inscribe) = mark with one's signature; "The author autographed his book"