Numis Terms
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Coin Alignment - A method of striking in which the obverse and reverse dies are aligned  180 degrees from each other. [
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Medal Alignment - A method of striking coins in which both the obverse and reverse dies  are aligned in the same direction. [
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Effigy - The image or likeness of a person, usually on the obverse of a coin or medal.
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Luster - Appearance of a coin's ability to reflect light; brilliance. Percentage  of the original mint luster is one of the factors in determining grades  of "Mint State" coins (e.g. MS-60, MS-65).