AI Appraisal Estimate

This is a professionaly graded 2002 Upper Deck Sammy Sosa baseball card, identified as card #N-2 from the 23rd National Sports Collectors Convention held in Chicago, IL. The card is encased in a rigid plastic slab by GEM Grading Inc. (GEM), displaying a '10 Gem Mint' grade. The card features a high-action photograph of Sosa in a Chicago Cubs blue jersey and pinstriped pants, standing in a stadium environment. The Upper Deck logo is located in the upper left, while a banner at the bottom denotes the 23rd National Convention location. The card exhibits sharp corners and vibrant color saturation, characteristic of a high-grade specimen from the early 2000s era. The slab itself shows light surface scuffing and scratches consistent with handling and storage, but it remains structurally sound with a clear identification label. While GEM Grading is not considered a top-tier industry standard (like PSA or BGS) for valuation purposes, the card appears to be in excellent physical condition with precise centering and clean edges visible through the holder. The printing features crisp typography and a glossy finish, typical of Upper Deck's premium promotional releases for major hobby events.

I have carefully examined the provided images of the 2002 Upper Deck #N-2 Sammy Sosa National Convention Promo. Visually, the card exhibits the high-gloss finish and crisp registration expected from Upper Deck’s premium promo releases. The centering appears well-balanced, and the corners, visible through the slab, show no obvious softening. However, as an appraiser, I must highlight that the holder is from GEM Grading Inc., which is generally considered a 'boutique' or lower-tier grading service within the hobby. Their '10 Gem Mint' designation does not carry the same market weight or premium as a '10' from PSA, SGC, or BGS. Market demand for Sammy Sosa remains soft compared to his contemporaries due to his association with the steroid era, and mass-produced promotional cards from the early 2000s are readily available. While the 'Chicago' connection adds a bit of regional appeal, this specific card typically trades as a raw or low-value encapsulated item. Comparables for GEM-graded modern promos often sell at a significant discount, essentially reflecting the value of the raw card plus a nominal premium for the protection of the slab. Limitations: This appraisal is based solely on digital images. I cannot verify surface indentations, micro-creasing, or the authenticity of the slab's tamper-evident seal. A full authentication would require an in-person physical inspection under 10x magnification to examine the halftone printing patterns and stock density. Furthermore, I would recommend cross-referencing the internal serial number with a database—if available—to ensure the slab has not been compromised. For maximum value realization, the card would need to be cracked and submitted to a top-tier grading service (PSA/BGS).