AI Appraisal Estimate

This is a royal blue and white football jersey featuring the name 'MATHIS' and the number '98' on the back, representing Indianapolis Colts legend Robert Mathis. The jersey is constructed from a combination of a solid fabric upper and a breathable mesh lower section, consistent with contemporary sports apparel designs. The white lettering and numerals appear to be tackle-twill or high-quality heat-pressed material, securely stitched to the garment. A significant feature is the autograph located on the inner bar of the number '8', signed in black permanent ink. The signature is relatively compact and legible. The garment's condition appears very good to excellent, showing minimal signs of wear, fabric pilling, or fading, which suggests it has been primarily used as a display piece rather than worn. The stitching on the shoulder stripes and numbering is uniform and intact. While the brand tag is not directly visible, the style is consistent with modern NFL replica or custom fan jerseys from the late 2000s or 2010s. The presence of the autograph adds considerable value to the piece for collectors of sports memorabilia, specifically those focused on the Indianapolis Colts franchise.

I have conducted a visual inspection of this Robert Mathis signed Indianapolis Colts custom jersey. The garment is in excellent condition, displaying crisp royal blue fabric and intact tackle-twill numbering. The signature, executed in black ink on the number '8', shows good flow and pressure, consistent with known Mathis examples. As a custom jersey (lacking official NFL branding or logos), the value is primarily driven by the autograph rather than the garment itself. The market for Mathis, the Colts' all-time sacks leader, remains steady among franchise collectors. Comparable sales for authenticated custom jerseys range from $125 to $175, while officially licensed Nike or Reebok jerseys can reach $300+. The 'custom' nature of this item slightly limits its ceiling compared to authentic on-field equipment. My primary reservation is the lack of a visible third-party authentication (JSA, PSA/DNA, or Beckett) sticker or certificate. Without this, the value is speculative. To finalize this appraisal, a physical inspection is required to verify ink saturation and fabric quality. Full authentication would necessitate a side-by-side comparison of the signature with established exemplars and verification of any existing provenance documentation from the signing event.