clo#2 Daito in shirasaya by Sa Hiroyuki
Nagasa : 66.5cm
Machi: 3.3 cm
Kasane: 4 mm at to[ of mune & 7mm at shinogi
Kissaki: 5 cm long
A very nice daito in shirasaya by Sa Hiroyuki with NBTHK Juyo Token certficate 34th session. Blade is in kiri wood shirasaya with solid gold 2 piece habaki and sayagaki by Tanobe Michihiro. This wonderful sword is one of the great pieces from the large Sa family. sa Hiroyuki is the son of Sa Yukihiro according to the meikan and fujishirs books. In the Koza , section on Chikuzen by Honma Sensei he states there is a theory that Hiroyuki was the father of Yukihiro. No matter father or son there was a direct connection to the great sword smith Sa. The passing of the teachings from Soshu masamune on to Sa and then Sa on to his students is really evident in this blades work. Due to the great quality displayed in this sword it has been designeated as Juyo Token during the 34th NBTHK Juto shinsa session. In addition there is a sayagaki by tanobe Michihiro with an extensive sayagaki writing wnding with the four kanji's Chin Chin JU JU. This is his way of saying a superb blade and above Juto quality. Tanobe puts the period of make to be Embun / Joji while the Meikan and Fujishiro place him at Shohei because there is a dated piece of Shohei 20 ( 1366).
This big , healthy sword has a wide bohi that goes way down in the osuriage nakago and up into the koshinogi. The boshi is a classic style of sa where it has a pointed tip and has that pinched in center. The temper is a wide suguba ( straight) temper of ko nie and inside the tmeper there is a lot of activity of ashi, sunagashi and kinsuji. the lamination grain is made up of ko mokume itame and some masame under the hi on the ura side. Many chikei are also shown.
This blade exhibits a classic nambokucho shape which shows the masamune connection.