Cassius Clay (Muhammad Ali)

Three-time World Heavyweight Boxing Champion and Olympic Gold Medalist · Boxing - Professional Sports

Olympic Team USA 1960 / Louisville Sponsoring Group

Early career - circa 1960-1964

Album page / Paper slip

Excellent; signature is bold and crisp with no fading, though paper shows minor textural grain consistent with vintage stock.

High; 'Cassius Clay' signatures are significantly rarer than 'Muhammad Ali' signatures due to his 1964 name change.

Overall Assessment

An exceptional example of a high-grade Cassius Clay signature, featuring perfect flow and excellent contrast, making it a top-tier collector's piece.

Highly likely authentic; confidence level 95% based on fluent speed and specific letter characteristics.

Full name 'Cassius Clay' in a rapid, fluid cursive style with a distinctive open 'C' and sloping 'y' descender.

Strong pen pressure at the base of the 'C', rapid connecting strokes in 'assius', and a sharp, decisive terminal stroke on the 'y'.

Blue ballpoint pen on pink/salmon-colored paper stock; the ink shows natural absorption and age-appropriate color shift.

A cut pink paper slip or autograph book page, typically from an in-person encounter during the early 1960s.

$3,500 - $5,000 USD (authenticated)

Matches high-quality exemplars signed by Ali prior to the Sonny Liston fight, showing no signs of the Parkinson's tremor seen in later years.

Look for the fluid, rhythmic connection between letters and the specific loop of the 'l' in Clay; check for back-slanting on the 'y'.

PSA/DNA or James Spence Authentication (JSA) for premier sport-specific certification.

No significant red flags observed; the ink flow is too rapid for a tracer/forger and lacks the hesitation marks of a slow imitation.

Value is maximized if provenance links the item to a 1960-1963 travel location or training camp.

Signed before his conversion to the Nation of Islam and his name change to Muhammad Ali in 1964.

Appreciating; early-career 'Clay' signatures are treated as blue-chip investments in the sports memorabilia market.

Excellent; one of the most sought-after signatures in sports history with a finite supply of pre-1964 examples.

Sonny Liston, Joe Frazier, or early career George Foreman autographs.

Should be framed with 99% UV-protective glass and acid-free mounting to prevent the pink paper from fading or becoming brittle.

Ali became extremely reluctant to sign 'Cassius Clay' later in life, often refusing or charging a massive premium for 'slave name' signatures.

Identified on 7/6/2026