AI Appraisal Estimate

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What was submitted

Photo and notes provided by the user — not generated by AI

Submitted item photo
Submitted photo · May 22, 2026

User's notes

1/1

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.

Note

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

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AI Identification

·Not independently authenticated·Verify before acting

Leaf Mythical Max Brosmer 1/1 Pre-Production Proof Trading Card

Sports Memorabilia / Trading Cards

AI Estimated Value

·Not an official valuation·Verify before acting

$150-250

As of May 22, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This is a unique, one-of-a-kind (1/1) pre-production proof trading card from the Leaf 'Mythical' series featuring University of Minnesota (formerly New Hampshire) quarterback Max Brosmer. The card measures approximately 2.5 by 3.5 inches and is constructed from heavy-stock cardpaper with a high-gloss finish. The visual design is highly distinct, featuring a composite image of Brosmer in his white and maroon football uniform holding a ball, juxtaposed against a large blue-furred Bigfoot or Sasquatch-like creature. The background exhibits a vibrant green-to-blue shimmering foil effect characteristic of modern high-end sports inserts. Notable markings include the 'Leaf Mythical' branding and prominent text reading '1/1 PRE-PRODUCTION PROOF' centered on the lower half. The item appears to be in excellent condition, housed within a protective clear plastic top-loader and an inner poly sleeve to prevent surface scratching or corner dings. As a pre-production proof, this card serves as a final quality-control sample before a full print run, making it a rare artifact for collectors of collegiate NIL (Name, Image, and Likeness) memorabilia. The edges appear sharp, and the centering looks consistent with high manufacturing standards for modern sports collectible products.

AI Appraisal Report

·AI can make mistakes·Verify before acting
I have conducted a visual examination of the Leaf Mythical Max Brosmer 1/1 Pre-Production Proof. The card presents in Gem Mint condition, exhibiting sharp corners, clean edges, and excellent centering. The high-gloss finish and shimmering foil background are consistent with Leaf’s premium 'Mythical' subset. As a 1/1 pre-production proof, the rarity is absolute; however, market demand for Brosmer is currently localized, primarily driven by his transition to the University of Minnesota and his performance in the Big Ten. Leaf proofs generally trade at a slight discount compared to 'pack-pulled' or 'pack-certified' 1/1 inserts, as they lack the official serial numbering and on-card or sticker autographs found in mainstream releases. The 'Mythical' theme—pairing athletes with cryptids—is a niche but growing design trend. Comparable collegiate 1/1 proofs for mid-tier NFL prospects typically trade within this range, though a breakout season at a major program could drive upside near the $350 mark. A significant limitation of this appraisal is the reliance on digital imagery. While the card appears authentic based on printing patterns and stock thickness, a definitive authentication would require physical inspection to verify foil consistency and surface integrity. Full valuation is contingent upon providing the original Leaf-branded seal or COA (Certificate of Authenticity). For professional grading and registry purposes, I recommend submission to PSA or BGS for 'Authentic/Alteration' labeling, as pre-production proofs are sometimes excluded from standard numeric grading scales.

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