1918 1C Lincoln XF40 3% O/C Mint Error. Know the difference: misaligned die errors vs. First, we will look at a misaligned die error. These occur when (usually) the hammer die is not properly lined up with the anvil die, resulting in a slight offset on one side of the coin. This means that only one side will show the misalignment, and the reverse will appear normal.
Misaligned errors are relatively common and do not command much of a premium unless extreme. An off-center coin, on the other hand, does not have to do with the misalignment of the dies.These errors occur when the planchet is, for whatever reason, improperly fed into the striking chamber, and only sits partially on the collar. Since the collar is responsible for holding the planchet in place during striking, only part of the planchet (the part that is over the anvil die) gets struck. The coin is then ejected (providing it is not struck again). An off center strike will show an offsetting of the image on both sides of the coin, and may be misshapen and elongated. Off-center strikes are popular errors and do command a premium based on the percentage off center. Value for these errors increases if the date is intact as well.
How To Calculate Percent Off Center? This came up in another thread and I thought it might be worthwhile to start a thread on the topic. There is only really one correct way to calculate the percentage a coin has been struck off center.The easiest way to calculate the percentage would be to use a set of calipers; measure the diameter of the coin (preferably in millimeters); measure the distance off-center, and divide the off-center distance by the diameter. This item is in the category "Coins & Paper Money\Coins: US\Errors". The seller is "r5-d4" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Brazil, Chile, Colombia, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica.