

| Inscribed: 'Academy Opening Commemorative, Navy Submarine Academy, Taisho 9 [1920] September 20.' This was the first submarine academy in Japan. It was first opened in Kure Naval District (Hiroshima) and then moved to Otake City (also Hiroshima) in 1942. The academy was officially closed on September 15, 1945. The design has a submarine outline and the water is blown ink (fukizumi). Finding any sake cup referring to Navy submarines is very difficult. In all these years, I have seen only three submarine-related cups. |

