Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)
Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)

Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)

Regular price $1,900.00 Sale price $1,850.00 Save $50.00
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Vintage Nakayama Maruka Kiita Nashiji Tokusen Tokyu (Superb quality) Japanese Natural Sharpening Stone 1546g (3lb. 6.7oz.)

Size: 193mmX72mmX50-53mm

 

It has Maruka stamp on the side and Hatanaka Jyunshin Shohonyama stamps on the top.

The stone has 60 gata size (193mmX72mm), but it is extra thick stone (50mm).

It is light brown color stone with Nashiji dots on the sharpening surface.

It comes with the original Hatanaka paper box which has little damage, but still nice condition to me. 

#6000 to #10000 or higher grit for finishing razor blade or high-grade carbon steel blade.

Hardness--------- 8.6

It raises very good amount of black slurry quickly, and it is kind of hard and condensed stone.

It is not too hard and not too soft, ideal hardness to me.

 It does not need Tomo Nagura or a device that raises slurry like Diamond lapping stone.

(Scale; 1 to 10, 1-3 is very soft muddy rough grit whetstone 3-6 is soft medium grit whetstone, 6-8 is hard medium grit whetstone; 8-10 is fine grit whetstone)

Particle Size-------------- 9.0

(Scale; 1 to 10, 1-3 give deep scratch marks to the steel, 3-5 is delete the 1-3 scratches, 5-8 makes the steel cloudy, 8-10 makes the steel semi-mirror finish or mirror finish)

It makes my blue II steel blade knife Jigane became from bright silver color finish to semi-mirror finish, and Hagane became mirror finish.

Nakayama whetstone is finest whetstone that had been mined in Kyoto for almost 900 years ago. I think the mine had been closed more than 30 years ago. It had been very important as military affairs, because it is sharpener for weapons, so the mine had been protected by the Emperor of Japan or Shogun or Japanese Government for a long time. Only Honma family could have mined for a long time. Nakayama Maruka is highly sought finishing whetstone even in Japan, because the mine was closed, and harder and harder to find. It is ideal razor hone or the cutlery that needs very fine finish.

Probably #6000 to #10000 or higher grit with the same as artificial whetstone.

Natural whetstone has wider capacity than artificial whetstone has, and actually, we do not know until sharpen blade on the hone for a while. Because artificial whetstone molecules do not break down to smaller sizes, but natural whetstone molecules are possible to unbond to smaller sizes, and those molecules are mixed with sharpened steel molecules, and make Jigane as suitable Jigane color, and Hagane as suitable Hagane color. It is natural mystics.