The jersey Reggie Jackson wore when he hit his famous moonshot home run during the 1971 All-Star Game has just hit the auction block ... and it can be all yours, if you've got some serious cash laying around!!
TMZ Sports has learned ... the Oakland A's vest that Reggie donned when he smashed the 539-foot HR is currently being sold at SCP Auctions, and experts say it could go for more than $250,000!!
Of course, while the price tag is hefty, the jersey is a part of MLB history .