Ken Griffey Jr. & Sr. Signed MLB Baseball “Back to Back HR” – BAS Witness
- Regular price
- $449.99
- Sale price
- $449.99
- Regular price
-
$509.99
Add one of the most meaningful and historic father-son collectibles in MLB history to your collection with this Ken Griffey Jr. & Ken Griffey Sr. Autographed Official MLB Baseball featuring the iconic “Back To Back HR 9/14/90” inscription. On September 14, 1990, the Griffeys became the first—and still only—father and son to hit back-to-back home runs in a Major League game, creating one of baseball’s most unforgettable moments.
This authentic Rawlings Official Major League Baseball has been hand-signed by both Ken Griffey Jr. and Ken Griffey Sr.. The ball includes the historic date inscription “Back To Back HR 9/14/90”, making it an exceptionally rare dual-signed piece that celebrates a one-of-a-kind milestone.
The autographs are authenticated under the Beckett Authentication Services (BAS) Witness Program, meaning a Beckett representative personally observed both signatures. The ball includes a BAS tamper-proof Witness hologram for lifetime verification.
Enjoy Free Shipping & Free Returns on this elite Seattle Mariners collectible. Each baseball ships securely packaged, fully insured, and ready for display.
Product Highlights
- Dual-signed by Ken Griffey Jr. & Ken Griffey Sr.
- Includes the historic inscription “Back To Back HR 9/14/90”
- Official Rawlings Major League Baseball
- Authenticated by Beckett BAS Witness
- Includes tamper-proof Beckett Witness hologram
- One of the most unique dual-signature items in MLB history
- Free Shipping & Free Returns within the U.S.
Specifications
| Players | Ken Griffey Jr. & Ken Griffey Sr. |
|---|---|
| Team | Seattle Mariners |
| Item Type | Dual-Signed Official MLB Baseball |
| Brand | Rawlings Official Major League Baseball |
| Inscription | “Back To Back HR 9/14/90” |
| Authentication | Beckett BAS Witness |
| Includes | Tamper-proof BAS Witness hologram |
| Condition | Brand New / Mint Autographs |
| Shipping | Free Shipping & Free Returns (U.S.-only) |
Authenticity
This baseball is authenticated by Beckett Authentication Services (BAS) under the Witness Program, ensuring both signatures were observed in person by a Beckett representative. The tamper-proof hologram provides lifetime verification and collector confidence.
Display & Care
- Display in a UV-protective baseball cube for long-term preservation
- Avoid direct sunlight and excessive humidity
- Handle with gloves to protect the signature panels
- Perfect for premium Mariners, Griffey family, or MLB milestone displays
Shipping & Returns
- Free Shipping: Fast, insured delivery within the U.S.
- Free Returns: 30-day hassle-free return policy
- Secure Packaging: Professionally boxed to protect the baseball during transit
Frequently Asked Questions
Is this an official MLB baseball?
Yes. This is an authentic Rawlings Official Major League Baseball.
Are both autographs authentic?
Yes. The item is certified under the Beckett BAS Witness Program, confirming both signatures were witnessed in person.
Does the baseball come with a display case?
No. It ships without a case, but fits all standard MLB display cubes.
Does this include free shipping?
Yes—every order from GameDay Sports Memorabilia includes Free Shipping & Free Returns within the United States.
