Sold at Auction: Pete Alonso autographed New York Mets jersey (MLB Authentication).

Pete Alonso New York Mets Autographed Nike #20 Jersey - Limited Edition #1/1

Pete Alonso #20 - Mets Combined No-Hitter - Autographed Game Used Jersey and Game Used Pants Combo - Inscribed No-Hitter 4-29-22 - Mets vs. Phillies - 4/29/22

Pete Alonso Autographed Mets Authentic Jersey +++ - The Autograph Source

Pete Alonso #20 - Autographed Game Used Road Grey Jersey - 3-4, 2 HR's, 5 RBI's, BB, 2 Runs Scored - Mets vs. Yankees - 7/25/23

PETE ALONSO Autographed New York Mets 2020 TOPPS Inception Card FANATICS LE 77/90 - Game Day Legends

Pete Alonso #20 - Mets Combined No-Hitter - Autographed Game Used Jersey and Game Used Pants Combo - Inscribed No-Hitter 4-29-22 - Mets vs. Phillies - 4/29/22

Pete Alonso Signed/Autographed Authentic Jersey MLB 150 Fanatics

Pete Alonso Autographed Mets Authentic Jersey - Rookie Signature - The Autograph Source

Pete Alonso New York Mets Autographed Fanatics Authentic Baseball - Art by Mike Floyd - Limited Edition 1 of 1

Lot Detail - Pete Alonso Signed & Rookie Stats Inscribed New York Mets Home Jersey - 6/20 (MLB Authenticated & Fanatics)

Lot Detail - 2019 Peter Alonso Game Used and Signed New York Mets Alternate Jersey Worn on May 4th, 2019 for Home Run #10 of Record Setting Rookie Season (MLB Authenticated)

Pete Alonso Signed, Inscribed New York Mets Home Jersey (#44/44) - MLB Authenticated, Fanatics on Goldin Auctions

Pete Alonso Signed New York Mets Jersey (Fanatics Hologram)

Pete Alonso #21 - Game Used White Pinstripe Jersey - Roberto Clemente Day - Mets vs. Pirates - 9/15/22 - 2-3, BB, RBI, 1 R; Mets Win 7-1

How MLB Authenticates Balls Like Aaron Judge's 60th Homer - The New York Times