Hi - I am a newbie here.   I have a bit of a collection of old Japanese acoustics including a 1970 Takeharu WT300, 1969 Yamaha G170A and several other axes that are dear to me.   I also have two Kawai guitars a KF-70  steel string and an M-40 nylon.  They are both old - I estimate 60's and in pretty good playable condition but I would love to know something of the history and the timbers used.
The KF-70 looks like walnut back and sides - probably veneer.
The M-40 b&S are solid looks like maybe Brazilian Rosewood - strong grain golden brown colour with spidery fleck.  I have emailed Kawai and they have ignored me 

  - so if anyone hear can shed any light at all on old Kawai's I would really appreciate it