Please help me to identify this hone. I bought it from the flea market. The seller said it was around 1950. He was his grandmother, who was a barber in the village. I cleaned it. Align it on a diamond plate. Then on a glass with a suspension. It looks rough or dirty in the photos, but it's actually very smooth. It has the typical smell of natural stone. The suspension it releases is dark brown. Looks like mud.

It's almost ready, but I haven't tried it yet.

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