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Hello DZEC,

Yes I think those stones are "Bouts Rustiques" like this http://www.coticule.be/coticule-sample-repository/items/28.html

We can read :

"Bouts Rustiques" are made from chunks of...

Hello,

I present you some old Belgian colticule hones, those stones are extremely slow with or without slurry, but they give an excellent result.

1) First one : a green/grey color

344960
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