AI identification & appraisal estimate

Steve Blass Autographed Pittsburgh Pirates Souvenir Baseball

Submitted photo of Steve Blass Autographed Pittsburgh Pirates Souvenir Baseball
Photo submitted by the user — not generated by AI

AI Estimated Value

Not an official valuation

$40-$65

AI estimate as of March 9, 2026 · verify with a professional before acting

AI-Generated · Verify before acting

Everything on this page is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

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AI Item Analysis

This is a standard-sized souvenir baseball featuring the logo of the Pittsburgh Pirates MLB team. The ball is constructed with a white synthetic or leather cover, held together by traditional red stitching. At the center of the sweet spot is a printed graphic showing the vintage 'Pirate' mascot within a golden-yellow diamond frame, used by the team during the late 20th century. Below the logo is a hand-signed autograph in blue ink by former All-Star pitcher and broadcaster Steve Blass. The signature appears fluid and bold, indicating the use of a felt-tip marker. The baseball is housed in a two-piece round acrylic display sphere that sits on a square black plastic pedestal base. The ball's surface appears well-preserved with minimal yellowing or toning, suggesting it has been kept out of direct sunlight. The display case shows some light surface scuffing but remains clear. This item represents a piece of Pittsburgh sports memorabilia, celebrating Blass's long-standing connection to the franchise, likely dating from the 1990s to the early 2000s based on the logo style and signature consistency.

AI Appraisal Report

I have examined the digital representation of the Steve Blass autographed Pittsburgh Pirates souvenir baseball. The item presents in excellent display condition, exhibiting a crisp white cover with minimal ultraviolet-induced toning. The blue felt-tip signature on the sweet spot is fluid, consistent with Blass’s known late-career script, and shows no significant fading or ink bleeding. As a souvenir-grade ball rather than an Official Major League (OML) baseball, the value is inherently capped as collectors typically prefer professional-grade leather. Steve Blass remains a beloved figure in Pittsburgh history due to his 1971 World Series heroics and decades as a broadcaster; however, his signature is relatively common in the marketplace due to his accessibility and long tenure with the team. Market comparables for souvenir-grade Blass balls generally fall between $30 and $70. The inclusion of the protective acrylic display and pedestal adds approximately $5-$10 in secondary value. Limitations: This evaluation is based on image analysis alone. I cannot definitively verify the ink depth, potential autopen usage, or the texture of the signature. A full authentication would require a physical inspection to confirm the signature's pressure points and a certificate of authenticity (COA) from a reputable third-party service such as PSA/DNA or JSA. Provenance documentation regarding the signing event would further solidify his valuation.

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