Answer
Nov 17, 2024 - 11:50 AM
The original sharpening stone used to produce the 6"x1" size is sourced from Kyoto Special Product. This stone is called Atagoyama Shiage Toishi. "Atagoyama" refers to its mine of origin, while "Shiage Toishi" indicates its class as a finishing stone (grit rating). Other components of the JNAT naming convention—such as visual qualities and strata—have been omitted by the manufacturer.
Please note that we do not have sufficient expertise to attribute visual qualities or identify the specific strata of the stone. Additionally, keep in mind that the visual properties of cut stones may not exactly match those of the original, uncut stone.
The information below is taken from our records of cutting stones *before & after"
Final product: Atago Whetstone 6" x 1"
Original stone:
正本山()合砥 愛宕鉱山合砥 40型 最高級 仕上砥石
The information below is taken from our records of cutting stones *before & after"
Final product: Atago Whetstone 6" x 1"
Original stone:
正本山()合砥 愛宕鉱山合砥 40型 最高級 仕上砥石
Stamps on the stone:
愛宕鉱山合砥 (atago-yama-kōzan-awasedo, Atago polishing stone)
仕上砥石 (shiage-toishi, early finisher)
On the sticker:
鳴瀧礦山産出 (naru-taki-kōzan-sanshutsu, product of Narutaki)
正本山 (shō-hon-yama)
京都特産 (kyōto tokusan, Kyoto Special Product)
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