Jons Stats — Sports Memorabilia Appraisal in San Antonio, TX

Insurance companies will not honor a claim on memorabilia unless you have a formal appraisal on file before loss occurs. We produce an insurance valuation certificate that documents each item's condition, estimated replacement cost, and the appraisal date. Without it, you are relying on homeowner's blanket coverage, which typically caps collectibles at $1,500 to $2,500 total.

For appraisals submitted with a charitable donation, the IRS requires a qualified appraisal and Form 8283 for any noncash donation valued over $5,000. We produce a letter of appraisal for donation purposes that names the donor, the recipient organization, the contribution date, a description of each item, and the appraised value. The appraiser must declare no financial interest in the transaction. This documentation audit-proofs your tax return.

A signed jersey or autographed photo must be authenticated before it can be valued. We compare the signature's slant, pen pressure, letter spacing, and formation against known exemplars. A forged signature often shows inconsistent pressure, mechanical regularity, or ink that does not match the era. We also check for provenance: a chain of custody letter, a photo-match to a game or event, or a credible documentation trail from the original source.

Game-used equipment appraisal requires provenance verification. A game-worn jersey should have a LOA (letter of authenticity) from the team, a major auction house, or a recognized authenticator. Without it, value drops sharply because the market distrusts unprovenanced claims. Forgery red flags include mechanical regularity in the signature, reversed pen strokes, and ink chemistry inconsistent with the era.

Your appraised value is not what you will net if you sell. An appraisal is a professional opinion of fair market value—the price at which a willing buyer and a willing seller would agree to transact on the appraisal date. Resale price is different because of costs and timing.

Auction house commissions typically run 15–25% of the hammer price. If your collection is appraised at $50,000 and you sell it through an auction house, you will net roughly $37,500 to $42,500 after commission. Sports memorabilia market trends show that rookie cards and Hall of Fame signatures historically outperform common-player items. Vintage 1950s–1970s memorabilia has risen steadily as baby boomers age and estates enter the market. More recent cards from the 2000s onward have been volatile, with graded high-end copies holding value better than bulk commons. We note investment category outlook in the appraisal so you understand whether your items are in a growing or softening segment of the market.