This rare postcard is a must-have for any Boston Red Sox fan! It features the signature of baseball legend Carl Yastrzemski and has been authenticated by Professional Sports (PSA/DNA), ensuring its authenticity. The postcard is in great shape and has been well-preserved, making it a wonderful addition to any collection. The Perez-Steele brand is known for producing high-quality sports memorabilia, and this postcard is no exception. It's a great way to show your love for the Boston Red Sox and the sport of baseball. Don't miss out on this unique opportunity to own a piece of sports history!