Jack Sharkey
World Heavyweight Boxing Champion (1932-1933) · Boxing - Professional Sports
International Boxing Hall of Fame
Era
Mid to late 20th century, likely 1970s based on inscription date
Item Type
Index card
Condition
Excellent vintage condition with natural age-toning to the index card paper; the blue ink signature remains strong and clear
Rarity
Scarce for vintage cut signatures, though Jack Sharkey signed periodically for collectors later in life
Overall Assessment
A wonderful, certified authentic vintage signed index card from a classic heavyweight boxing champion, ideal for dedicated boxing and sports memorabilia collections
Authenticity Assessment
Certified authentic by PSA/DNA with certification number 84184848
Signature Style
Full name with a lengthy inscription and date, featuring characteristic looping ascenders and descenders
Signature Characteristics
Strong fluid pressure with distinctive tall loops on the capital letters and a consistent downward slant
Ink & Medium
Blue ballpoint pen ink on lined index card
Item Description
Vintage yellow lined index card with pre-printed 'My Autograph' heading on the right margin, vertically oriented in a PSA tamper-evident holder
Estimated Value
100 to 250 USD
Comparison to Known Examples
Matches verified vintage exemplars of Jack Sharkey's later-life autograph style, showing characteristic formation of the capital J and S
Authentication Tips
Verify the PSA/DNA certification online using the unique serial number, and examine the fluid stroke continuity and characteristic looping 'J' and 'S'
Certification Recommendation
PSA/DNA (already certified and encapsulated)
Red Flags
No significant red flags observed as the item is securely encapsulated and certified by PSA/DNA
Provenance Notes
Backed by PSA/DNA certification, which provides strong institutional provenance regarding authenticity
Historical Context
Jack Sharkey was World Heavyweight Champion who fought legends like Jack Dempsey and Max Schmeling during the golden age of boxing in the interwar period
Market Trends
Stable demand for vintage boxing champions from the 1920s and 1930s era, particularly pre-war heavyweight titleholders
Investment Potential
Stable niche collector piece with modest appreciation potential tied to pre-war boxing history interest
Similar Autographs
Autographs of boxing contemporaries such as Max Schmeling, Primo Carnera, and Gene Tunney
Display & Preservation
Keep away from direct sunlight to prevent fading of the paper stock and store in a stable climate-controlled environment
Interesting Facts
Born Joseph Paul Zukauskas, he adopted the ring name Jack Sharkey in honor of his idols Jack Dempsey and Tom Sharkey