1909 Crown Prince's Voyage to Korea Commemorative  Medal

皇太子渡韓記念章

(Koutaishi Tokan Kinen Shou)

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.