Issued in an unknown boys magazine, JK 25 includes sumo and non-sports cards as well as 15 baseball superstars of the era. It is one of the scarcest karuta sets ever produced. The Japanese Baseball Card Checklist & Price Guide, Vintage Edition 2.1 has assigned it a scarcity factor of R4, indicating that only five to nine copies of each card are known to exist. All cards in the set have several perforation bumps along the edges, as the cards were initially issued as in perforated sheets. The key to the set is the scarce Shigeo Nagashima rookie card. This rookie card of Japan's Mickey Mantle remains on the want list of most Nagashima collectors. Now is your chance to finally add this elusive Nagashima issue to your collection. Blank backed.

Size: 2 11/32" x 3 15/32"

Condition: Ex/Mt