. "Ryohei Ishikawa"@en . . . . . . "Ryohei Ishikawa (born July 1927) is a Japanese banker, the former chairman of and the . He is a philatelist specialising in the stamps and postal history of the United States, Hawaii, and Hong Kong."@en . . . . . . "Banker"@en . . . . . . . "Ryohei Ishikawa (born July 1927) is a Japanese banker, the former chairman of and the . He is a philatelist specialising in the stamps and postal history of the United States, Hawaii, and Hong Kong."@en . . . "1927"^^ . . . . . . . . . . "Collection of U.S. postage stamps"@en . . . . . "Japanese"@en . . . "July 1927"@en . "5440"^^ . . . . "Ryohei Ishikawa"@en . . . . . "1113463155"^^ . "60017701"^^ . . . . . . . . . . "Ryohei Ishikawa"@en . . .