This is a very rare antique Japanese military commemorative dish, made of copper or some similar metal. The image is that of the "Honoring Loyal Tower" set up on the top of the Baiyu (White Jade) hill in Port Arthur. The tower was set up to commemorate all those who died in the Siege of Port Arthur during the Russo Japanese war - the tower still stands today. There's a monoplane flying overhead on the right, which suggests that this is probably a dish from the 30s, maybe even the late 30s. The words under the tower are "North China Patrol Commemoration" and on the ribbon "14th Destroyer Squadron" - quite possibly a reference to the initial attack on China in 1937 when it was referred to as the "North China Incident". The outer ring is also metal, and there's a rope that's tied on the back to allow you to hand the dish on a wall.

Condition: There's some scruff marks on the edge of the outer ring at around 2 o'clock. Please see pictures.

Size: 6" across