Ken Griffey Jr. Autographed 1988 Cal League Rookie Card #34 Seattle Mariners Auto Grade Gem Mint 10 Beckett BAS #19823430
Ken Griffey Jr. Autographed 1988 Cal League Rookie Card #34 Seattle Mariners Auto Grade Gem Mint 10 Beckett BAS #19823430
Collector Grade autographed and signed Ken Griffey Jr. 1988 Cal League Rookie Card #34 memorabilia—Beckett BAS Auto Grade Gem Mint 10, securely encapsulated (Cert. #19823430). A first-ballot Hall of Famer inducted in 2016, Griffey launched 630 home runs (7th all-time). He won the 1997 AL MVP, earned 13 All-Star selections, and claimed 10 Gold Gloves while starring for the Seattle Mariners.
Collector's Highlights:
- Athlete: Ken Griffey Jr.
- Item: 1988 California League Rookie Card #34, hand-signed; BAS encapsulated; Auto Grade Gem Mint 10; Seattle Mariners; BAS #19823430
- Authentication: Beckett Authentication Services (BAS) — tamper-proof holder with Gem Mint 10 autograph grade and matching certification number
Verified authentic by Beckett, this early-career Griffey rookie issue delivers long-term collector confidence and real hobby value—an iconic signed card tied to one of baseball’s greatest careers.
Original: $359.00
-65%$359.00
$125.65More Images
Ken Griffey Jr. Autographed 1988 Cal League Rookie Card #34 Seattle Mariners Auto Grade Gem Mint 10 Beckett BAS #19823430
Collector Grade autographed and signed Ken Griffey Jr. 1988 Cal League Rookie Card #34 memorabilia—Beckett BAS Auto Grade Gem Mint 10, securely encapsulated (Cert. #19823430). A first-ballot Hall of Famer inducted in 2016, Griffey launched 630 home runs (7th all-time). He won the 1997 AL MVP, earned 13 All-Star selections, and claimed 10 Gold Gloves while starring for the Seattle Mariners.
Collector's Highlights:
- Athlete: Ken Griffey Jr.
- Item: 1988 California League Rookie Card #34, hand-signed; BAS encapsulated; Auto Grade Gem Mint 10; Seattle Mariners; BAS #19823430
- Authentication: Beckett Authentication Services (BAS) — tamper-proof holder with Gem Mint 10 autograph grade and matching certification number
Verified authentic by Beckett, this early-career Griffey rookie issue delivers long-term collector confidence and real hobby value—an iconic signed card tied to one of baseball’s greatest careers.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Collector Grade autographed and signed Ken Griffey Jr. 1988 Cal League Rookie Card #34 memorabilia—Beckett BAS Auto Grade Gem Mint 10, securely encapsulated (Cert. #19823430). A first-ballot Hall of Famer inducted in 2016, Griffey launched 630 home runs (7th all-time). He won the 1997 AL MVP, earned 13 All-Star selections, and claimed 10 Gold Gloves while starring for the Seattle Mariners.
Collector's Highlights:
- Athlete: Ken Griffey Jr.
- Item: 1988 California League Rookie Card #34, hand-signed; BAS encapsulated; Auto Grade Gem Mint 10; Seattle Mariners; BAS #19823430
- Authentication: Beckett Authentication Services (BAS) — tamper-proof holder with Gem Mint 10 autograph grade and matching certification number
Verified authentic by Beckett, this early-career Griffey rookie issue delivers long-term collector confidence and real hobby value—an iconic signed card tied to one of baseball’s greatest careers.
