The uncatalogued Ed Broder set from 1975 depicts members of the 1975 Japanese League referenced as JA5.  Ed Broder served in the Air Force for a number of years and was stationed in Japan from 1971 to 1977.  He published six sets of cards that featured NPB (Nippon Professional Baseball Organization) players between 1974 and 1976.  Like his cards of MLB players, these card sets were unlicensed by NPB.  However, as Gary Engel points out in his "Checklist and Price Guide", "most pre-1975 Japanese cards of all types are unlicensed".  "They have to ask permission now" Engel says, implying that the card manufacturers never did during Oh's playing days.  Quoting again from Engel: "So, despite the stigma sometimes attached to his American issues, Mr. Broder's Japanese player issues are highly collectable".