Ken Griffey Jr.
MLB Hall of Fame Outfielder · Baseball - MLB
Seattle Mariners

Era
1990s Peak Era
Item Type
Official baseball
Condition
Excellent
Rarity
Common signer
Overall Assessment
A highly collectible signature from a beloved baseball icon, presenting in great visual condition.
Authenticity Assessment
Likely authentic based on visual flow and signature characteristics.
Signature Style
Distinctive fluid script typically featuring large loops and his often-included uniform number 24 integration.
Signature Characteristics
Flowing cursive with a sharp upward slant and characteristic looped flourishes.
Ink & Medium
Blue ballpoint pen ink.
Item Description
Standard leather baseball housed in a clear protective cube display case with a handwritten label in front.
Estimated Value
$150 - $300
Comparison to Known Examples
Consistent with verified mid-career 1990s Seattle Mariners era exemplars.
Authentication Tips
Look for smooth natural flow, correct proportions in the loops, and consistent pressure without hesitation marks.
Certification Recommendation
PSA/DNA or JSA
Red Flags
No significant red flags observed in the visible signature form.
Provenance Notes
Collector labeling suggests organized storage, but direct signing provenance adds premium value.
Historical Context
One of the defining baseball superstars of the 1990s and a cornerstone of the Mariners franchise.
Market Trends
Stable demand following his Hall of Fame induction and enduring popularity.
Investment Potential
Stable long-term holding with steady collector demand.
Similar Autographs
Derek Jeter, Cal Ripken Jr., Tony Gwynn
Display & Preservation
Keep away from direct sunlight in a UV-protected display case to prevent leather toning and ink fading.
Interesting Facts
Ken Griffey Jr. has one of the most aesthetically pleasing and widely recognized swings and signatures in modern baseball history.