A 19-year-old thrift-store find in Oregon yielded a rare Wilt Chamberlain warmup jacket from the 1972 NBA Finals, purchased for just $3.07 and later sold at Sotheby’s for $89,600 after authentication. The buyer, Quinn Brown, a online clothing reseller, used photo matching and stitching details to verify the jacket’s provenance, which Sotheby’s described as an extraordinary piece of memorabilia. The jacket’s sale illustrates the burgeoning market for game-worn sports items, especially those connected to basketball legends, even though it fell short of the pre-sale estimate of $150,000 to $250,000. Chamberlain’s legendary career includes a 100-point game and two NBA titles, with this 1972 Finals gear among the rarest of its kind, though a 2023 Sotheby’s jersey from the same series fetched millions. Brown’s earlier resales included a Sub Pop Records T-shirt for $250, highlighting how thrift-store discoveries can become high-value collectibles. The episode underscores the ongoing appeal and potential profitability of authenticated memorabilia in a robust collecting market.