Category Archives: Martin R. Brown

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Coin Grading Has Come Far But Still Has a Long Way to Go

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By Charles Morgan and Hubert Walker for CoinWeek ….. In 1958, the bustling numismatic hobby experienced a grading revolution with the release of Martin R. Brown and John W. Dunn’s Guide to the Grading of United States Coins. In that book, Brown and Dunn laid out a set of adjectival grades that should be familiar […]

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The Early Days of Numerical Coin Grading

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By Tom DeLorey for CoinWeek ….. Numismatist Ron Guth has very sincerely proposed that the coin industry and the significant Third Party Grading Services (TPG’s) change the grading standards that it and they use. His new system would go from the current scale of 1 to 70 to a new one that starts at 1 […]

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