Oslo Kunstforening has the great pleasure of presenting «Letters Sent from Heaven», a unique exhibition with Japanese experimental physicist Ukichiro Nakaya's photographs of snow crystals and electro static discharge. This is the first time Ukichiro Nakaya's (1900-1962) work is shown in Norway. Nakaya and his co-workers produced the photographs in the 1920´s and 1930´s. Photo: Kaga City, Nakaya Ukichiro Foundation