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Can anyone tell and point out to me why this coin is a fake.
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<p>[QUOTE="Oldhoopster, post: 3564283, member: 84179"]I’ve worked on a few project over the years where we’ve tried to use resistivity measurements to identify internal flaws, but they lacked consistency. If I remember correctly (I’m too lazy to go back and read the product literature), the Sigma detector compares the resistivity against a standard and only gives a go/no go reading. </p><p><br /></p><p>The point I was trying to make earlier (and didn’t do a good job), is that there is no single test that will work all the time. Each has its limitations, so it’s important to understand those limitations when interpreting the data. Don’t blindly “trust the gun”. Determine if the person using the gun understands its strengths and limitations. </p><p><br /></p><p>BTW: One of the easiest methods to flush out Chinese Morgan Dollar fakes is to check the die marriage at VAM World. If you can’t match the coin to a known VAM, then that’s a big red flag. No fancy science behind that technique. Just need a good loupe and the patience to look at pictures.[/QUOTE]</p><p><br /></p>
[QUOTE="Oldhoopster, post: 3564283, member: 84179"]I’ve worked on a few project over the years where we’ve tried to use resistivity measurements to identify internal flaws, but they lacked consistency. If I remember correctly (I’m too lazy to go back and read the product literature), the Sigma detector compares the resistivity against a standard and only gives a go/no go reading. The point I was trying to make earlier (and didn’t do a good job), is that there is no single test that will work all the time. Each has its limitations, so it’s important to understand those limitations when interpreting the data. Don’t blindly “trust the gun”. Determine if the person using the gun understands its strengths and limitations. BTW: One of the easiest methods to flush out Chinese Morgan Dollar fakes is to check the die marriage at VAM World. If you can’t match the coin to a known VAM, then that’s a big red flag. No fancy science behind that technique. Just need a good loupe and the patience to look at pictures.[/QUOTE]
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Can anyone tell and point out to me why this coin is a fake.
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