"Ooban" is very Rare size of the stone, HUGE stone
This Size is super Rare for Jnats plus it is super old stock and come from deep layer so it is super fine for Takashima stone !
As you can see a lot black swarf and very fine finish !
That stone is very fast ! and very fine. Plus it is still very easy to use !
Super uniform with NO lines at all, sides super uniform as well and very light yellowish colour !
Collector Grade ! Never seen Takashima like that !!!
Size: 263mm 86mm 30mm