Mark McGwire
MLB home run record-breaking slugger, Oakland Athletics and St. Louis Cardinals · Baseball - MLB
AI-generated identification · may be incorrectBefore 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.
Era
circa late 1990s peak career
Item Type
Official major league baseball, sweet-spot placement
Condition
Near Mint, clean white leather with strong blue ballpoint ink and zero fading
Overall Assessment
Appears to be a desirable sweet-spot signed baseball from a historic era, with the primary strength being ideal placement and clean ink; next step is professional in-person authentication
AI Estimated Value
Not an official valuation$50 to $150 unauthenticated, increasing to $200 to $400 with third-party verification
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, standard service costs roughly $30 to $50 with a few weeks turnaround