This is an antique Japanese military sake cup, decorated with what looks like a heavy caliber AA-gun, with a plane flying over the head of the gun. The words are "1st Anti-Air Regiment" "Discharge Commemoration". The exterior of the cup has a cherry blossom and poem embossed pattern.

Condition: Excellent - slight fading of the gold and the name on the back is somewhat faded

Size: 2" across