• A black and gray mariners baseball cap featuring an embroidered green and white compass star logo on the front, with a blue autograph of ken griffey jr. on the brim.
  • A vintage baseball cap by New Era, featuring a dark navy blue crown with a beige underside and a matching beige visor. The cap has an attached 'Authentic Diamond Collection' hangtag and a small MLB logo on the front.
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New Era

Ken Griffey Jr. Signed Seattle Mariners New Era Cap /240 – UDA Authenticated

Ken Griffey Jr. Signed Seattle Mariners New Era Cap /240 – UDA Authenticated

$600.00
$600.00
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Add one of baseball’s most recognizable signatures to your collection with this Ken Griffey Jr. autographed Seattle Mariners cap.

The navy-and-gray New Era cap features the classic Mariners compass logo embroidered on the crown and is signed by Griffey across the brim in blue ink. The signature includes a “HOF 16” inscription, recognizing his 2016 induction into the Baseball Hall of Fame.

The cap retains its original New Era Authentic Diamond Collection hangtag and includes an Upper Deck Authenticated hologram with authentication number BAE11598. It is reportedly part of a limited edition of 240.

A standout display piece for Seattle Mariners fans, baseball autograph collectors, or anyone building a collection around one of the most celebrated players of his generation.

The cap shown is the exact item you will receive.
No stock photos. No surprises.

Item Details

Athlete: Ken Griffey Jr.
Team: Seattle Mariners
Item: Autographed baseball cap
Brand: New Era
Collection: Authentic Diamond Collection
Cap Colors: Navy and gray
Signature Color: Blue
Inscription: HOF 16
Authentication: Upper Deck Authenticated
UDA Authentication Number: BAE11598
Limited Edition: Reportedly numbered to 240
League: MLB
Condition: Pre-owned collectible; final condition details will be confirmed after the item is received and inspected

Why It Belongs in Your Collection

  • Signed by Baseball Hall of Famer Ken Griffey Jr.
  • Classic Seattle Mariners compass-logo cap
  • Blue signature displayed prominently across the brim
  • “HOF 16” inscription
  • Upper Deck Authenticated
  • New Era Authentic Diamond Collection cap
  • Original retail hangtag remains attached
  • Reportedly limited to 240 examples
  • Strong display piece for Mariners and baseball collectors
  • Exact cap shown is the cap you will receive

Shipping & Handling

  • Securely supported and packaged to help preserve the cap’s shape
  • Signature, brim, tags, and authentication hologram will remain protected during transit
  • Packed in a sturdy shipping box
  • Packed with the same care we would expect for our own collection 🤠

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