Picture of the 1935 Tokyo/Yomiuri Giants with pictographs for numbers. The full name of the team at the time of their trip was Dai Nippon Tokyo Yakyu Korakubu (Greater Japan Tokyo Baseball Club). This from their trip to the United States. If you look close on their left sleeve, you can see the pictograph for Japan (Nippon). While in the States, someone said that they were the Giants of Tokyo and when they came back, the team name was changed to Tokyo Kyojin or Tokyo Giants.
1998 Summer Issue of Baseball Magazine