New York Yankees Stadium Seat #23 (Yankees-Steiner Authenticity) This Seat Is Numbered With Don Mattingly #23. The Seat Is 30 Inches Tall & 20 Inches Wide. The item "New York Yankees Stadium Seat (Yankees-Steiner Authenticity) Don Mattingly #23" is in sale since Sunday, October 6, 2019. This item is in the category "Sports Mem, Cards & Fan Shop\Fan Apparel & Souvenirs\Baseball-MLB". The seller is "dougsouthcounty" and is located in Lake Forest, California.This item can't be shipped, the buyer must pick up the item.