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<p>[QUOTE=&quot;cladking, post: 13014, member: 68&quot;]Frequently someone is speaking about two different phenomena when talking about light wear and friction.&nbsp; Typical circulation wear will be caused by soft materials like the insides of purses and pockets and harder things like other coins which can be oriented so as to wear the high spots a little lower down rather than merely what would contact a hard surface it&#039;s lying on.&nbsp; </p><p><br /></p><p>Some old coins will show almost none of this type of wear.&nbsp; Almost all the wear will be strictly on the very highest point and these will flatten as this progresses.&nbsp; This wear is typically seen in collector coins and the wear is sometimes called &quot;cabinet friction&quot;.&nbsp; It is acquired in many ways from the slides in albums to sliding around in one of the old time coin cabinets. Even vibration over many years can start showing up as friction.[/QUOTE]</p><p><br /></p>

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