Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey – Size XL – Beckett BAS Witness
- Regular price
- $599.99
- Sale price
- $599.99
- Regular price
-
$659.99
In Stock — Ships Today
Order early for the best chance of delivery before Christmas. Processing and transit times vary. Display cases may require an additional 3–5 business days before shipping.
Celebrate the greatness of “The Kid” with this Ken Griffey Jr. Autographed Seattle Mariners Black Nike Jersey (Size XL). Personally hand-signed by the Hall of Famer and authenticated with Beckett BAS Witness Certification, this collectible jersey is a must-have for Mariners fans and baseball memorabilia collectors.
Key Features
- Hand-signed by Hall of Famer Ken Griffey Jr.
- Official Black Nike Seattle Mariners Jersey
- Size: XL
- Authenticated by Beckett BAS Witness Certification
- Perfect for framing, shadow box display, or memorabilia rooms
Player Facts
- Ken Griffey Jr.: National Baseball Hall of Fame inductee, Class of 2016
- 13-time All-Star and 1997 AL MVP
- 10-time Gold Glove winner, 7-time Silver Slugger, and 630 career home runs
- Beloved Mariners icon known for his sweet left-handed swing
Specifications
| Player | Ken Griffey Jr. |
|---|---|
| Team | Seattle Mariners |
| Item | Black Nike Jersey |
| Size | XL |
| Autograph | Hand-signed by Ken Griffey Jr. |
| Authentication | Beckett BAS Witness Certification |
| Condition | Mint / Bold Signature |
| Display Recommendation | Professional framing or shadow box (not included) |
Authenticity & Shipping
- Authenticity: Beckett BAS Witness – autograph signed in the presence of a Beckett representative
- Condition: Clean, bold signature on a pristine Nike jersey
- Packaging: Professionally packed to ensure safe delivery
- Shipping: Free U.S. shipping; international shipping available
How to Verify This Item's Authenticity
This piece is BAS Witness Authenticated — the highest authentication tier offered by Beckett Authentication Services. A Beckett representative was physically present at the signing, observed the autograph being applied, and applied the tamper-evident hologram on-site. The witnessed designation provides the strongest possible chain-of-custody evidence in the industry, and Beckett maintains a public lookup tool so you can confirm the piece independently in under a minute.
- Locate the BAS Witness hologram applied to the item at the signing event. The serial number is printed on the hologram itself.
- Visit Beckett's verification page at beckett-authentication.com/search.
- Enter the serial number into Beckett's lookup tool.
- Confirm the match. The lookup will return the item details and confirm the Witnessed authentication — these should match the piece in your hands.
