JRM 54 is one of the rarest Japanese baseball card sets produced during the past 40 years. In fact, it received an R5 designation in the Japanese Baseball Card Checklist & Price Guide, Vintage Edition 2.1 by Gary Engel, signifying
that five or fewer copies of each card are known to exist. The set was produced to promote Mizuno sporting goods and features members of the Mizuno Advisory Board. The two cards shown in the top row are larger than the others.
Oklahoman Randy Bass, a two time MVP is seen at left, while three time MVP Hiromitsu Ochiai is pictured at right. The remaining six cards feature (middle row, left to right) Sachio Kinugasa (HOF) whose 2,215 consecutive games played
streak was later surpassed by Cal Ripken, Jr., Tatsunori Hara (HOF), Yutaka Fukumoto (HOF) world career stolen base leader until eclipsed by Rickey Henderson (bottom row, left to right) Toshio Shinozuka, Kazuhiko Ushijima, Osamu
Size: The Bass and Ochiai cards are 2 1/2" in diameter. The other six cards are 2 3/32" in diameter.