David Hall of Professional Coin Grading Service presents this tutorial on coin grading and authentication. How are coins graded and what kind of care goes into coin grading. This is an overview of the numismatic science and process.
David Hall of Professional Coin Grading Service presents this tutorial on coin grading and authentication. How are coins graded and what kind of care goes into coin grading. This is an overview of the numismatic science and process.
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