AI Appraisal Estimate

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Submitted photo · June 12, 2026

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AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below 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 Identification

·Not independently authenticated·Verify before acting

Signed San Francisco 49ers Riddell Full-Size Replica Football Helmet

Sports Memorabilia

AI Estimated Value

·Not an official valuation·Verify before acting

$450 - $650

As of June 12, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This is a full-size San Francisco 49ers replica football helmet manufactured by Riddell. The shell features the team's signature metallic gold finish, accented by a central vertical stripe pattern consisting of two red stripes bordering a single white stripe. The iconic 'SF' oval logo decal is applied to the side. The helmet is equipped with a gray-coated multi-bar facemask secured by semi-transparent yellowish clips and a white ribbed chin strap. Most notably, the top of the helmet's gold shell features a hand-signed autograph in black permanent marker, which appears to be that of NFL Hall of Famer Joe Montana. The signature displays clear, fluid motion with no visible fading, though its authenticity would require official certification. The helmet's overall condition appears excellent, with a high-gloss finish and no significant scratches or scuffs visible on the shell. The internal padding and decals appear intact, consistent with a display-grade collectible. This model reflects the style worn by the team during the late 20th century, particularly their championship eras in the 1980s and 1990s.

AI Appraisal Report

·AI can make mistakes·Verify before acting
Upon visual examination of this San Francisco 49ers Riddell full-size replica helmet, I find the item to be in excellent display condition. The metallic gold finish maintains a high-gloss luster, and the decals show no signs of peeling or bubbling, which is typical for 1980s-90s era throwbacks. The signature, attributed to Joe Montana, is executed in black permanent ink on the upper crown. The stroke shows high 'pen pressure' and fluid motion consistent with known Montana exemplars, specifically the looping 'J' and the distinct 'M' structure. However, without a holograph from a major authenticator like PSA/DNA, JSA, or Beckett, the value remains speculative. The market for Montana-signed full-size helmets is robust. High-end collectors typically seek 'Authentic' Speed helmets (retail $300+ unsigned) over 'Replica' models like this one. Current market comparables for a certified Montana replica helmet range from $500 to $700. Unauthenticated versions usually sell for under $250 due to the high risk of forgeries in sports memorabilia. Since the physical condition of this shell is pristine—lacking the common scuffs found on older replicas—it sits at the higher end of the replica tier assuming the signature is verified. Critically, a 2D image cannot confirm ink depth, drying patterns, or the absence of an autopen. Full valuation is contingent upon a physical inspection to verify the ink's interaction with the polycarbonate surface and the presence of matching tamper-proof serial numbers. To achieve the upper range of my appraisal, I recommend submitting this item to a third-party authenticator to obtain a COA or LOA, which would instantly solidify its liquidity in the secondary market.

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