This is a tanto sword. The construction of the blade is GYAKU-KOBUSE, one kind of KOBUSE
construction. It is constructed of two different kinds of steel, the
core steel and the outer steel, where the core steel is wrapped with the
outer steel. The core steel is harder than the outer steel. The outer
steel was made of folded steel. It was folded 13 times creating 8192
layers for superior strength and flexibility. The visible tenuous
undulating grain on the blade was resulted from folded repeatedly during
forging. The core steel was made of 1095 steel. The steel has been
throughly refined and tempered, a special clay is applied to the blade
by hand, using a thin covering near the edge and a thicker layer over
the rest of the blade. This results in a relatively quicker cooling of
the edge during quenching, producing a hard edge and softer back. The
beautiful real hamon on the blade is also result of the differential
cooling of the blade (quenching and tempering). This blade has been hand
polished with multiple grade sharpen stone by Japanese method, which
made the surface of the blade like a mirror, the more importance is that
the blade was polished by HAZUYA which is a very thin Uchigumori stone
fixed with paper, Hazuya is a specific stone to bring up hamon. The
stone is very fine and soft against the steel. the blade of this sword
is completely finished with Hazuya. The work is done to get mirror-like
surface on shinogi-ji and edge. High quality brass dragon design
Tsuba(guard) with one piece brass habaki(blade collar), and two
seppas(spacer) secure the tsuba. The Fuchi(sleeve) and Kashira(buttcap)
are also made of brass. The tsuka-ito is black with alternating cross
over the red real ray skin samegawa, and two dragon design copper menuki
on the handle. The tang is double pinned with bamboo mekugi. The Tanto
comes with a hard wooden SAYA(sheath) with samegawa covered, Same' (ray
skin )has been sanded smooth and filled with polished lacquer. The
saya has buffalo horn koiguchi, and
thick yellow&brown silk sageo tied over a buffalo horn kurikata with bright copper shitodome. This sword is strong enough to cut through a thick bamboo tree with a single strike yet sharp enough to slice paper.
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