Cassius Clay

Undefeated heavyweight boxing champion and Olympic gold medalist who later became Muhammad Ali. · Boxing

AI-generated identification · may be incorrect

Before you rely on this

This report was produced by an AI model from a photograph. It is not an authentication, a certificate of authenticity, or an appraisal. Verify important details with a qualified third-party authenticator before buying, selling, insuring, or valuing an autograph. Read the full disclaimer.

Cassius Clay

Era

Circa 1960s, early professional or Olympic period.

Item Type

Vintage index card or paper slip signed in ballpoint pen.

Condition

Very Good; clean blue ink signature with minor toning to the backing paper.

Overall Assessment

A highly desirable early Cassius Clay signature carrying significant historical value. The main strength is the scarce 'Olympic Champion' inscription, while the primary concern is the presence of an unknown red sticker that requires professional review.

AI Estimated Value

Not an official valuation

$1,000 to $3,000 unauthenticated, potentially exceeding $10,000 if fully certified.

AI can make mistakes. This estimate is for general guidance only, not a professional appraisal. Actual value depends on authentication, condition, provenance, and market demand.

Get It Authenticated

PSA/DNA or JSA, costing approximately $100 to $200 with a multi-week turnaround.

Identified on 10/12/2026
Cassius Clay | Autograph Identifier