I guess identification of cavalier isn`t possible here ...
Luckily we know cavalier name for this 1st class set (thanks you Pieter! )
It was awarded to Mr. Harada, Grandmaster of the Ceremonies of the Imperial Household on occasion of the official visit of Tito to Japan in 1968.
1st class was intended for state and political figures (mostly Ministers), as well as foreign ambassadors, who have already completed their diplomatic mission in Yugoslavia
Only 1423 awardings with 1st class were made until the December 31, 1985.
1081 to foreigners and only 342 to citizens of Yugoslavia.
Box