1964 Press Photo Prince Hiro arm wrestles with his father as mother watches

Prince Hiro, who'll celebrate his fourth birthday February 23, indulges in a bit of arm wrestling with his father Japanese Crown Prince Akihito, at their Togu Palace in Tokyo. Crown Princess Michiko is an interested spectator in this picture made this month.

Photo is dated 1964.

Photo measures 10 x 8.25 inches.