A warmup jacket worn by Wilt Chamberlain during the 1972 NBA finals that was bought by a teenager for $3.07 at an Oregon thrift store sold for $89,600 at auction on Monday.

Quinn Brown had been eyeing a massive bin of clothes at a Goodwill store outside Portland in January when he saw someone toss a Lakers jacket with Chamberlain’s name on it back on the pile. Brown, who resells used clothes online, quickly grabbed it.

The jacket was auctioned by Sotheby’s, which had estimated its value between $150,000 and $250,000 before bidding closed Monday. It received a total of 48 bids, according to the auction house.

Described on Sotheby’s website as an “extraordinary piece of memorabilia,” the short-sleeved yellow warmup jacket was worn by Chamberlain during the 1972 NBA finals, in which the Los Angeles Lakers beat the New York Knicks.

“I didn’t even think that finding something like this was possible,” Brown said. “I got very, very lucky.”