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Message:: [QUOTE="gbroke, post: 1237348, member: 22585"]"Last but not least are the "Rotated Die Errors." This error type involves the instillation of one of the dies into a press in the wrong rotational allignment, or for one of the dies to break loose from its fixed position, allowing it to rotate within the die holder. Normally, the dies for United States coins will be set into the press with their designs opposite each other; shifted toward opposite poles. This will result in a struck coin that will show the obverse right side up while the reverse is up-side-down. This is normal and referred to as "coin alignment." However, on rare occasions, one of the dies is set so that it strikes coins in an orientation other than "coin alignment." This can result in a coin that if held with its obverse upright, will display the reverse at any alignment other than the proper 180o "coin alignment." The most desirable error of this type is one that shows a 180o misalignment, which of course results in a coin with no rotational differentiation between the obverse and reverse (or what is referred to as "medal alignment" since most commemorative medals, military medals, and tokens are struck in this manner). To date, at least five different of the States quarter designs have been found with significant "Rotated Die" errors. Any rotational misalignment of over 15% is considered significant. The values of rotated die errors are partially based on the severity of rotation and rarity. Average prices for 45 degree to 180 degree rotations range widely from from dealer to dealer at about $45 to $450."source: <a href="http://koinpro.tripod.com/Articles/finding_states_quarters_errorsa_.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://koinpro.tripod.com/Articles/finding_states_quarters_errorsa_.htm" rel="nofollow">http://koinpro.tripod.com/Articles/finding_states_quarters_errorsa_.htm</a>[/QUOTE]

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