This is an antique Japanese military sake cup, decorated with a pair of flags and a star, with the words "Victorious Return Commemoation". The exterior words are "Infantry 9th Regiment Sniper Rifle Soldier" and the soldier's full name Kato Seitaro. Japanese snipers were a late creation - only in the late 30s in China did they start using specialized sniper rifles. I've never seen a sniper cup before.

Condition: Two hairlines at 4 and 11 o'clock. They're not very obvious unless in the right lighting angle.

Size: 3.25" across