It's the single glove Michael Jackson wore for the Motown 25th anniversary show in 1983.
It's not the first glove Jackson wore in performance, or the most elaborate. It was hurriedly made from a golf glove just a day or so before the show.
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But Darren Julien, president of Julien's Auctions, calls it "the holy grail of Michael Jackson memorabilia."
It's one of the few left-hand gloves Jackson performed in. It comes from the show where he premiered his moonwalk. And it's being offered for sale by Walter Orange of the Commodores, to whom Jackson made a gift of the glove after the Motown show.
Julien expects it to fetch hundreds of thousands of dollars.