This is an antique Japanese military sake bottle, decorated with a map of North China with two crossed flags, one of which is the flag of the Provisional Government of the Republic of China, which was the puppet regime set up by the Japanese in North China after their initial invasion in 1937 and lasted until 1940 when it got merged with the Nanjing puppet regime. The flag used here is the old Republic of China flag when it first got established in 1911, but then was replaced by the more familiar blue and white sun on a red ground flag. It's pretty uncommon to see this flag, especially on a bottle in mint condition. The place names on the map include Beijing, Tianjin, Fengtai, etc - all important towns or cities near the Beijing area. There's an embossed cherry blossom tree on the bottle and on the back are the words "Victorious Return Commemoration" "Transport Unit". 

Condition: Mint

Size: 5.75" tall x 2" across