This is an antique Japanese army sake cup, decorated with a poem and some cherry blossoms with an insignia of the railroad unit on top. The words are "Commemoration" "2nd Railroad Unit" and the soldier's name Kato. The back of the cup is in the shape of a helmet with a matte finish and with a plane as the base, and the words "Imperial Army" embossed on the side. 

Condition: Excellent - slight fading of the gold

Size: 2" across