Muhammad Ali and Ken Norton

Heavyweight Boxing Champions and rivals (The Greatest & The Black Hercules) · Boxing - Heavyweight Division

World Boxing Council (WBC) / World Boxing Association (WBA)

Muhammad Ali and Ken Norton

Era

Bicentennial / Mid-Career; dated June 3, 1976

Item Type

Personal/Professional Business Card

Condition

Good to Very Good. The card shows significant toning, age spots (foxing), and corner wear. The ink remains bold and legible despite the aging of the paper.

Rarity

Rare; while Ali was a prolific signer, dual-signed items with his most significant rivals (like Norton) are highly sought after and much scarcer than solo examples.

Overall Assessment

This is a premium piece of boxing history. The combination of Ali and Norton signatures, a specific 1970s date, and the 'Certified Authentic' status makes it a highly desirable investment-grade item.

Authenticity Assessment

Highly likely authentic; Confidence: 100% (Slabbed and authenticated by PSA/DNA, Certificate 84093141)

Signature Style

Cursive script personalities. Ali's signature is mid-sized and clear; Norton's signature is smaller and positioned above and through Ali's. Includes date inscription '6-3-76'.

Signature Characteristics

Ali's 1970s signature is characterized by fluid motion, a distinct 'M' and 'A' with sharp peaks. Ken Norton's signature shows tighter spacing and a more modest scale.

Ink & Medium

Blue and black ballpoint pen on paper business card stock.

Item Description

A dual-signed business card originating from the Troy Kinunen Collection. The card features both Muhammad Ali's and Ken Norton's signatures.

Estimated Value

$2,500 - $4,500 USD

Comparison to Known Examples

Consistent with 1976 exemplars. Ali's hand was steady in this era, prior to the significant physical decline seen in the 1990s and 2000s.

Authentication Tips

Look for Ali’s distinct loop in the 'M' and the height of the 'l' in Ali. For Norton, the 'K' usually has a sharp angle. Because this is PSA/DNA certified, the barcode and serial number are the primary verification tools.

Certification Recommendation

Already certified by PSA/DNA (Professional Sports Authenticator).

Red Flags

No significant red flags observed; the provenance from the Kinunen collection and PSA/DNA encapsulation provide maximum security.

Provenance Notes

Part of the Troy Kinunen Collection, a well-known name in high-end sports memorabilia circles. Provenance is strong.

Historical Context

Signed in June 1976, just months before their famous third fight at Yankee Stadium (September 1976) where Ali won a controversial unanimous decision.

Market Trends

Ali memorabilia remains the 'Gold Standard' in sports collecting. Values for high-grade or unique dual-signed items featuring his legendary opponents are steadily appreciating.

Investment Potential

Excellent. Dual-signed pieces from this specific trilogy of fights (Ali vs. Norton) are bedrock assets in sports history collections.

Similar Autographs

Joe Frazier, George Foreman, or Sonny Liston dual-signed items with Ali.

Display & Preservation

Keep in the current UV-protected PSA slab. Store away from direct sunlight to prevent the ballpoint ink from fading and the paper from further yellowing.

Interesting Facts

Ken Norton is one of the few men to ever break Muhammad Ali's jaw (in their first fight in 1973). Despite their rivalry, they participated in many joint promotional events.

Identified on 6/7/2026