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  2. Proof coinage - Wikipedia

    en.wikipedia.org/wiki/Proof_coinage

    A PR70 coin is the highest grade possible for a proof coin and indicates a perfect example, with PR69 and lower grades reflecting some deficiency in the strike, centering, details, or other aspect of the coin. Most proof coins are double struck under higher pressure. This does not normally result in doubling that is readily observable, but does ...

  3. Sheldon coin grading scale - Wikipedia

    en.wikipedia.org/wiki/Sheldon_coin_grading_scale

    Proof coins graded 60 to 70 are mirrored to those of Uncirculated grades with the difference that the coin was not made for circulation. Proof coins with the grade of PR-63 are sometimes called "Choice Proofs". [25] Proof coins that are below the grade of 60 and show signs of circulation or mishandling have been classified as Impaired Proofs ...

  4. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    reverse proof A proof coin that has its fields frosted and the design and lettering with a mirror finish. Standard proof coins have the fields mirrored and the design and lettering frosted. rim The raised portion of the design along the edge that protects the coin from wear. [1] It also makes the coins stackable and easy to roll by machine. round

  5. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted. Several grading systems have been ...

  6. Your Silver Dollars Could Make You Rich — These 8 Are Worth ...

    www.aol.com/finance/silver-dollars-could-rich-8...

    This proof coin, a restrike of the original, brought in $2.3 million. It is highly prized due to its rarity and the storied history of when and how these high-grade 1804 Silver Dollars were struck.

  7. United States Proof Set - Wikipedia

    en.wikipedia.org/wiki/United_States_Proof_Set

    2019 Proof Set. The United States Mint Proof Set, commonly known as the Proof Set in the United States, is a set of proof coins sold by the United States Mint.The proof set is popular with coin collectors as it is an affordable way to collect examples of United States coinage in proof condition.

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