This is an antique Japanese military sake cup, decorated with a pair of flags, a kiri, and the words "Asahigawa Kempeitai". The soldier's name Miura is on the back. Kempeitai was of course the Japanese secret police, ostensibly the military police but it was a lot more than that. They are very rare - I've only seen maybe half a dozen of these in ten plus years.

Condition: Excellent - some fading of the gold

Size: 3.25" across