I found in the czech National Museum some documents from Jigoro Kano. There are letter to czech IOC member Mr. Jiri Guth Jarkovsky and his content is about Olympic Games 1940 in Tokio (letter is from 10. January 1935 and it is in English). Some next two documents are wishes to New Year.
Here is a link to zip file to all documents:
http://www.kitayama-junyu.info/doc/jkrew/out.zip
Here is a link to zip file to all documents:
http://www.kitayama-junyu.info/doc/jkrew/out.zip