Previous answer is
Sou Tsutomu Kaneyoshi Chikuzen koku saku
Special feature : Chikusyu Jyu So Tsutomu was born at Fukuoka prefecture Syowa 2nd year and named Masaru.
At NBTHK Shinsakuto exhibition, he got a lot of prizes and after that Heisei 9th, he got the Mukansa sword maker which is the top ranking sword contest. He made a lot of swords like Sosyu style, Sukehiro utsushi wide Doranba hamon. Probably He made sword as a copy of Kiyomaro. This sword was made at the season which bloom white Ume tree.
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Appraisal Quiz #246 (May 30th, 2013)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged
Blade length : 70.6 cm or 27.79 inches.
Sori : 2.8 cm or 1.10 inches.
Mekugi : 1
Width at the hamachi : 2.52 cm or 0.99 inches.
Width at the Kissaki : 1.60 cm or 0.62 inches.
Kasane : 0.96 cm or 0.37 inches.
Era : Late Edo period.
Shape : The blade is regularize but very thick (0.96cm)
with deep sori nice looking shape.
On both sides engrave Bo-Hi.
Jitetsu :Koitame had well grained with jinie attach beautiful texture.
Hamon : Niedeki suguha with ash and small ash work and sunagashi in Ha. Boshi is hakikake style.
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