“KUNIYASU(国安), Keichō (慶長,1596-1615), Yamashiro – “Kuniyasu” (国安), first name Saburōdayū (三郎太夫), he was a late student of Horikawa Kunihiro (堀川国広), Kuniyasu came like Kunihiro from Obi (飫肥) in Hyūga province but moved eventually to Kyōto, it is said that he worked for Torii Tadamasa (鳥居忠政,1566-1628) who was entrusted with the Iwakitaira fief (磐城平藩) after the Battle of Sekigahara, Kuniyasu moved in the second year of Keichō (1602) to this fief, a theory says that there was a certain relationship between him and the later smith Kunitora (国虎), he made mostly magnificent blades with a Nanbokuchō-sugata, the jigane is a standing-out itame-nagare with masame or a dense ko-ilame, in any case with ji-nie, the hamon is a slightly undulating nolare mixed with gunome, nie, kinsuji, sunagashi and often a noticeably broad yakikomi appear, the nioiguchi is broad, the boshi is ko-maru with some midare-komi, the tang is rather long and the yasurime are gyaku-sujikai, o-wazumono, jojo-saku”- Markus Sesko