| 1. | Collecting Error Coins | | | Just as nearly every family has its black sheep, virtually every coin series has its failures. These are known as errors or mis-struck coins, and have a following all their own. studium.com |
| 2. | Israel Error Coins | | | The site focuses on Israeli error coins but also features Canadian, U.S. and others. See bi-metallic errors, coins struck on scrap metal, and others. www.geocities.com |
| 4. | Error World | | | Internet club devoted to error and variety coinage of all kinds. www.errorworld.org |
| 5. | Error Coins Magazine | | | Monthly magazine devoted to error coin collecting. Available by subscription. www.etcmmag.com |
| 6. | Jason's Error Coins | | | Images of a collection of error coins. Wheat cents, Mercury dimes and other assorted. www.geocities.com |
| 7. | Baker Numismatics | | | Photographic image library of coins with doubled dies, repunched mintmarks, over mintmarks, and repunched dates. www.bakercoins.net |
| 8. | World Error Coins | | | Describes and illustrates dramatically mis-struck foreign coins. Includes information on recognizing various types of error coins as well as articles on how to get started collecting eror them. www.worlderrors.com |
| 9. | Rotated Die Coin Census | | | Census for US coins with major die rotation of 90 degrees to 180 degrees, includes Fake error detection and measurment indices. www.RotatedDies.com |
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