Very interesting thread, but in my case it created more questions than it answered as my SharpStone grinder does not appear to correspond to either your authentic or counterfeit examples. Perhaps you could help me to determine if mine is authentic or not?


From the top, lettering looks correct however it has a "TM" and not an "R" so does that mean it's counterfeit or just older? (Got it a few years back).



Your picture shows there as being a hole in the middle, but on mine, that is where the magnet is.






View from the bottom. I don't see any "Pat No" listed at all.

IIRC it did come with a little blue bag and a little black spatula, both of which are long gone by now.

It's never failed me and I don't recall ever having any metal shavings, etc, so I'm leaning toward it being authentic but I'd like to hear your opinion.