AI Appraisal Estimate

This is a 1999 Upper Deck SP Authentic football trading card featuring Hall of Fame tight end Shannon Sharpe of the Denver Broncos. The card serves as a special 'Buyback' edition, which is a previously released card (specifically a 1995 SP Authentic base card) that has been re-acquired by the manufacturer, signed by the athlete, and hand-numbered before being re-inserted into 1999 packs. The card features a high-action image of Sharpe in his blue and orange Broncos uniform set against a monochromatic stadium background with a large blue '84' outline. Significant markings include a bold blue ink on-card autograph by Shannon Sharpe across the center-left, with his jersey number '82' (incorrectly marked or reflecting an older collegiate/early career number) and a hand-written limited edition serial number '129/554' in the bottom right corner. The card is housed in a clear protective plastic top-loader. The condition appears well-preserved with sharp corners visible through the holder, although some light edge wear characteristic of the foil-heavy SP Authentic brand may be present. The manufacturing hallmarks include the 'SP Authentic' logo at the bottom and the vertical text '1999 UPPER DECK' along the left border, indicating its official release year.

I have carefully examined the provided images of this 1999 Upper Deck SP Authentic Shannon Sharpe 'Buyback' autograph. This specific release is significant because it features an on-card signature on a legacy 1995 design, hand-numbered to a limited print run of 554. The autograph appears consistent with Sharpe's known 1990s signature style, characterized by fluent motion and bold pressure. The centering appears excellent. However, the foil surfaces of SP Authentic cards are notorious for showing minor 'chipping' on the edges and surface scratching, which I can detect slightly on the left border. Market demand for Shannon Sharpe remains strong due to his Hall of Fame career and current high-profile media presence, though values for buybacks typically trail 'true' pack-pulled rookie autographs. Comparables for higher-end Denver Broncos legends in this set generally fluctuate between $150 and $300 depending on the specific serial number and grade. The hand-numbering '129/554' adds a layer of authenticity established by Upper Deck’s 1999 program. Limitation on Authenticity: While the markings and manufacturer logos appear consistent with period-correct printing, a technical analysis from a digital image cannot confirm the ink's age or the card's stock density. To provide a definitive certification of authenticity, this item would require an in-person physical inspection by a third-party grader (such as PSA, BGS, or SGC). This would involve forensic ink analysis to ensure the autograph was not applied post-release and a micro-examination of the foil stamping to confirm it is not a counterfeit reproduction. Possession of the original Upper Deck Certificate of Authenticity (COA) that originally accompanied these buybacks would also significantly bolster the valuation.