Wales 38
Image by thesweetcheat
Wales

Arrow Stones

I'm not sure why they have to be arrows. Why not knives or agricultural tools? You sometimes see sharpening marks on the stonework of medieval churches and they are always said to be made by the swords of passing soldiers (don't know why). A curved sickle would need a whetstone, but I suppose a convenient rock of the right type would do just as well for a straight blade if you didn't carry a whetstone.

There's an old sandstone-built cottage near to where I live that was once used as a schoolhouse. Part of the outside wall is covered in vertical scores, reputedly made by the children sharpen whatever it was they used to use to write on their slates.
I've seen fellas putting an edge on an iron pen-knife using a bit of snad or gritstone.