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Opinions Wanted
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05-11-2001, 07:28 PM
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bill m
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Re: Opinions Wanted
Hi Marvin,
I have heard a couple explanations for the asterisk, a rejection mark, and a hardness test mark. I'm pretty sure it is a hardness test mark, done in batches of say 20 out of every 500. Are we of the same opinion?
bill m
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