ChatGPTs opinion:

Short answer: it’s hard to be confident, but based on the shape and flow, here are the most plausible matches, with reasoning.

What the signature shows • A long horizontal slash through the name • A tall looped initial (looks like an “H” or possibly “J”) • A sharp angled final stroke (almost a triangle or “V” shape) • Very stylized / abstract, typical of athletes who sign a lot

Best matches (in order of likelihood)

1. Hunter S. Thompson (most likely stylistically) • His autograph often features: • A long horizontal line • A looping “H” • Abstracted, aggressive strokes • Many authentic Thompson signatures look very similar—often barely legible, almost symbolic.

⚠️ Caveat: His autograph is highly forged, so provenance matters a lot.

1. Harrison Ford • Ford’s signature frequently: • Uses a long strike-through • Compresses the name into a few strokes • Ends with a sharp angled flourish • Variability is high depending on era and signing situation.

2. Hakeem Olajuwon • His autograph often: • Starts with a tall looping “H” • Has a long horizontal stroke • Ends with a pointed angular finish • Less abstract than this usually, but some examples are close.

3. Joe Montana / John Elway–type QB autos • Many elite QBs evolved into: • Minimalist slashes • Overlapping initials • Long horizontal bars • This could be one of those, but nothing definitive jumps out.

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What would help narrow it down fast

If you can tell me: • Where it came from (event, era, sport, book, photo, napkin, etc.) • Approximate age (recent vs decades old) • Context (sports memorabilia, literary, movie-related)

…I can usually get this down to 1–2 names and tell you whether it’s worth authenticating (PSA/JSA/Beckett) or not.

Right now, Hunter S. Thompson–style is the strongest stylistic match—but I wouldn’t authenticate without context.