Hello,

It's a funny thing but the last time I have been on the look out for some more information about a sharpening stone I picked up last summer, a natural sandstone called an Orsas. I read the account of someone visiting the mines which noted all the men 60 years and above were dead and only old women were still left. It was silicosis, or something, from the particles of sandstone dust lodging in their lungs. Not that that's funny, you understand.

Greetings,

Don Wagstaff