Hi I've been offered a sword by the Smith now identified as 一刀斎安綱作 -smith Ittōsai Yasutsuna. He was born 1924 and died 1990. its in civilian mounts but I have seen reference to swords he made during WWII Albeit he must have been very young. i only have one reference that shows a sword constructed in 1960 to commemorate the 2600th year of the empire. It's in WWII mounts  http://kako.nipponto.co.jp/swords2/KT215546.htm there are remarkable similarities. does anyone know an