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Let's start a discussion for the weekend : What is a scratch?
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<p>[QUOTE="ksparrow, post: 8046540, member: 7638"]thinking about other marks, like chops, baggies, test marks; it occurs to me that a scratch is due to pressure applied over time, whereas the others are due to a brief, nearly instantaneous application of force. Not sure how to incorporate that into a concise definition, however. I'll post a photo of a coin with hairlines on one side and a scratch on the other. Maybe that will provide some food for thought.</p><p><img src="https://collectivecoin.imgix.net/pnfMevmHSzueQJdJwrwB_20%20dollar%20gold%20Liberty%201864%20obv.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="https://collectivecoin.imgix.net/OhIqi2X0TRGQs7OLMgtW_20%20dollar%20gold%20Liberty%201864%20rev.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="ksparrow, post: 8046540, member: 7638"]thinking about other marks, like chops, baggies, test marks; it occurs to me that a scratch is due to pressure applied over time, whereas the others are due to a brief, nearly instantaneous application of force. Not sure how to incorporate that into a concise definition, however. I'll post a photo of a coin with hairlines on one side and a scratch on the other. Maybe that will provide some food for thought. [IMG]https://collectivecoin.imgix.net/pnfMevmHSzueQJdJwrwB_20%20dollar%20gold%20Liberty%201864%20obv.jpg[/IMG][IMG]https://collectivecoin.imgix.net/OhIqi2X0TRGQs7OLMgtW_20%20dollar%20gold%20Liberty%201864%20rev.jpg[/IMG][/QUOTE]
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Let's start a discussion for the weekend : What is a scratch?
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