Enormous "Jumbo" sized baseball, nearly six inches in diameter, bearing the signatures of 19 members of the 1970 Pacific League champion Lotte Orions.  The baseball was signed during the San Francisco Giants' goodwill tour of Japan, when the two teams played one another in Tokyo.  Signatures include Hall of Famers Michio Arto and Sadat Kondo, as well as Osamu Hirose, Hiroyuki Yamazaki, Keisuke Senda, Masaaki Kitary, Ichiro Hiraoka, Takeo Daigo, Soroku Yagisawa, Iwao Ikebe, Takahiro Tokutsu and Fumio Narita. The baseball is in remarkable condition, an incredible display piece that remained with Giants manager Clyde King for decades after his time with the Giants. Full LOA from James Spence Authentication.