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<p>[QUOTE=&quot;cladking, post: 4954737, member: 68&quot;]There was a great deal of congressional work on the transition to clad coinage.&nbsp; The vending industry had a great deal of pull in the decisions as did the some metal fabricators like Olin Brass.&nbsp; The final composition of 75% cu and 25% nickel alloy explosively bonded on pure copper was effectively &quot;counterfeiting&quot; silver coins already in circulation since vending machines could not tell the debased coinage from the silver.&nbsp; </p><p><br /></p><p>Ironically in the intervening years coin discriminators have become so sensitive that they always will reject silver coinage.&nbsp; </p><p><br /></p><p>In 1999 quarter weight was reduced by 1% apparently so the worn quarters in circulation would continue to work in vending machines alongside the new thicker quarters.&nbsp; Only very recently has the FED begun removing old thin quarters, again for the vending industry though some of these might have been problematical in counting machines.&nbsp; </p><p><br /></p><p>Still a roll of old pre-1976 quarters will be a great deal shorter than a roll of brand new coins.&nbsp; Much of this wear that makes the roll so short is on the rims whose purpose is to protect the design and make the coins countable by stacking.[/QUOTE]</p><p><br /></p>

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