Trading Card Glossary › Card Types & Rarity
One of One
Also known as: 1/1, One-of-One, Unique
A 1/1 (one of one) card has a stamped print run of exactly one copy, making it the only version of that specific card in existence. 1/1s are the ultimate chase cards — owning one means no other collector in the world can have the same card. Common 1/1 formats include Superfractors, Logoman patches, printing plates, and artist-proof sketch cards. The rarity of a 1/1 can make a relatively common player's card extremely desirable simply due to its singular existence.
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