The Ken Griffey Jr SMR PSA Graded Card Price Guide Magazine June 2021 is a comprehensive and trusted resource for collectors and fans of the baseball legend. Published by PSA, this 1st Edition price guide features insights on rare and valuable sports trading cards, with a focus on Ken Griffey Jr and the Seattle Mariners. With 128 pages and contributions from professional graders, this magazine offers a detailed look at the current market for baseball cards, making it a must-have for any collector looking to enhance their knowledge and collection.