A super rare, nearly 40-year-old Kareem Abdul-Jabbar sticker just hit the auction block ... and TMZ Sports has learned it's about to sell for a STAGGERING sum!!
We're told the piece -- which is a sticker/card from the 1986 Fleer set -- is currently sitting at $95,000 in the bidding ... and is expected to fetch several thousands more by the time the auction concludes later this week.
Officials at PWCC Marketplace -- the org. hosting the auction -- tell us the scarcity of this particular KAJ sticker is what makes it a must-have item.