
Jack Sikma Autographed 1986 Fleer Card #102 Seattle Supersonics Auto Grade Gem Mint 10 CGC x JSA #6131791234
Jack Sikma Autographed 1986 Fleer Card #102 Seattle Supersonics Auto Grade Gem Mint 10 CGC x JSA #6131791234
Collector Grade autographed and signed memorabilia: Jack Sikma 1986 Fleer #102, CGC x JSA Auto Grade Gem Mint 10. A seven-time NBA All-Star, Sikma led the Seattle SuperSonics to the 1979 NBA Championship and was inducted into the Naismith Memorial Basketball Hall of Fame in 2019. Known for the “Sikma move” and elite free-throw shooting, he helped define the modern big man.
Collector's Highlights:
- Profession - Athlete: Jack Sikma
- Item: 1986 Fleer Basketball Card #102 (Seattle SuperSonics) — hand-signed; CGC x JSA Auto Grade GEM MINT 10; encapsulated in a tamper-proof holder
- Authentication: JSA COA with CGC x JSA grading/encapsulation (Cert #6131791234)
Authenticated by JSA and sealed by CGC x JSA, this signed 1986 Fleer issue delivers verified authenticity and confidence for serious Sonics and Hall of Fame collectors. JSA’s third‑party certification and the CGC x JSA Gem Mint 10 autograph grade support long-term value and make this card ready for premium display.
More Images

Jack Sikma Autographed 1986 Fleer Card #102 Seattle Supersonics Auto Grade Gem Mint 10 CGC x JSA #6131791234
Collector Grade autographed and signed memorabilia: Jack Sikma 1986 Fleer #102, CGC x JSA Auto Grade Gem Mint 10. A seven-time NBA All-Star, Sikma led the Seattle SuperSonics to the 1979 NBA Championship and was inducted into the Naismith Memorial Basketball Hall of Fame in 2019. Known for the “Sikma move” and elite free-throw shooting, he helped define the modern big man.
Collector's Highlights:
- Profession - Athlete: Jack Sikma
- Item: 1986 Fleer Basketball Card #102 (Seattle SuperSonics) — hand-signed; CGC x JSA Auto Grade GEM MINT 10; encapsulated in a tamper-proof holder
- Authentication: JSA COA with CGC x JSA grading/encapsulation (Cert #6131791234)
Authenticated by JSA and sealed by CGC x JSA, this signed 1986 Fleer issue delivers verified authenticity and confidence for serious Sonics and Hall of Fame collectors. JSA’s third‑party certification and the CGC x JSA Gem Mint 10 autograph grade support long-term value and make this card ready for premium display.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Collector Grade autographed and signed memorabilia: Jack Sikma 1986 Fleer #102, CGC x JSA Auto Grade Gem Mint 10. A seven-time NBA All-Star, Sikma led the Seattle SuperSonics to the 1979 NBA Championship and was inducted into the Naismith Memorial Basketball Hall of Fame in 2019. Known for the “Sikma move” and elite free-throw shooting, he helped define the modern big man.
Collector's Highlights:
- Profession - Athlete: Jack Sikma
- Item: 1986 Fleer Basketball Card #102 (Seattle SuperSonics) — hand-signed; CGC x JSA Auto Grade GEM MINT 10; encapsulated in a tamper-proof holder
- Authentication: JSA COA with CGC x JSA grading/encapsulation (Cert #6131791234)
Authenticated by JSA and sealed by CGC x JSA, this signed 1986 Fleer issue delivers verified authenticity and confidence for serious Sonics and Hall of Fame collectors. JSA’s third‑party certification and the CGC x JSA Gem Mint 10 autograph grade support long-term value and make this card ready for premium display.
























