|Image from Japanese Baseball Card blog|
Sadaharu Oh Article
1967 Kabaya Leaf Article
There is some good background and useful information for sumo collectors in the articles, although the sumo timelines and card cataloguing system follow a slightly different path. It is nice to see the Japanese cards getting some lovin'.
I was also inspired to pick up two unopened boxes of 2013 BBM 1st Version which contains Ohtani's rookie card. Now what to do with them.