Owen Steele's passion for error coins began in 1978 when, as a young bank teller, he discovered a 1972 Doubled Die Lincoln Cent in his daily transactions. This find sparked a twenty-five-year journey in professional numismatics, including two decades as an authentication specialist at a leading grading service. A respected lecturer at major coin shows and contributor to numismatic publications, Steele has dedicated his life to helping collectors develop the expert eye needed to spot valuable errors. His systematic approach to error authentication, refined through examining thousands of coins, forms the foundation of this comprehensive guide.
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