This is an antique Japanese military sake cup, made with pewter and decorated with a star on the front. The back of the cup has the words "Condolences on injury and sickness" and the other side "Major General Kamura". Luckily, Kamura 嘉村 is a pretty uncommon name and there aren't that many major generals, so there is only one candidate that I could find - a Major General Kamura Tatsujiro, who upon promotion to the rank of major general in 1930 was the commander of the 39th Brigade of the 20th Division, stationed in Korea. 

Turns out this Kamura general is a pretty pivotal figure. At the time of the Mukden Incident which was staged by the Japanese to perpetrate their invasion of Manchuria, Kamura was appointed the commander of the 39th Mixed Brigade (he was already commander of the 39th Brigade), which was the first unit to cross from Korea to China. This unit acted without the approval of the emperor and was really an act that the army itself decided upon. Crossing the Korean-Chinese border was an act of war. The government was outraged, but felt it couldn't back down having already crossed the border and Chiang Kai-Shek ordered to not resist this invasion (for fear of starting a full scale war). So instead of withdrawing the units, it doubled down and sent in reinforcements and this led to the eventual creation of Manchukuo under Puyi.

Kamura retired from the army in 1934 and survived the war, dying in 1963. His wikipedia page is only in Japanese here.

This cup comes with original wooden box with a sticker from a shop in Tokyo. It also comes with old cotton used to pad the cup and this silver colored cardboard inset to help it stay in place.

Condition: Excellent - minor scratches on the cup. The box is in excellent shape.

Size: 3.5" across