October 27, 2018 World Series Game (4) game-used base signed by (21) members of the Boston Red Sox Championship team. Regulation base by Schutt Sports has 2018 World Series logo medallions inset on the sides and markings on the underside relaying that it was used as second base in Game (4) which was played in Los Angeles. An MLB Authentication hologram (JD578077) further confirms use in the game which was won by Boston to claim the Championship. Signed on the top face by (21) members of the team incl. Mookie Betts, Jackie Bradley Jr, Xander Bogaerts, Steve Pearce, Brock Holt, Andrew Benintendi, Rafael Devers, Rick Porcello, Chris Sale, Nathan Eovaldi, David Price, Ryan Brasier, Brian Johnson, Heath Hembree, Matt Barnes, Eduardo Rodriguez, Brandon Workman, Mitch Moreland, Sandy Leon, Christian Vazquez, and Alex Cora. Includes letter of provenance from Tony LaRussa and full letter COA from JSA.