Established in 1909 to commemorate Prince Yoshihito's trip to the Korean Empire in 1907.

Awarded in gold to Imperial families and in silver to royalty. I have never seen the gold medal.

OBVERSE: Branches of sandalwood with the Imperial mum crest above.
REVERSE: Inscribed 'Imperial Japan Crown Prince, Voyage to Korea Commemorative Medal, Meiji 40 
[1907] October.'

The case is the same as that for the 1889 Imperial Constitution Promulgation Commemorative Medal, 
but the interior is red, not white.