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  2. 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 ...

  3. 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 ...

  4. Proof coinage - Wikipedia

    en.wikipedia.org/wiki/Proof_coinage

    Certification agencies can grade and assign numerical ratings for proof coins. 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.

  5. 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

  6. Paper currency grading - Wikipedia

    en.wikipedia.org/wiki/Paper_currency_grading

    Paper currency grading is the process of determining the grade or condition of a bank note, one of the key factors in determining its collectible value. A banknotes grade is generally determined by crispness (Rigid, not limp paper), brightness, and depth of color.

  7. Third-party grading - Wikipedia

    en.wikipedia.org/wiki/Third-party_grading

    Third-party grading (TPG) refers to coin grading & banknote grading authentication, attribution, and encapsulation by independent certification services.. These services will, for a tiered fee depending on the value of the coin, "slab" a coin and assign a grade of 1–70 on the Sheldon grading system, with 1 being the lowest grade, with only faint details visible to 70, a practically perfect ...

  8. Professional Coin Grading Service - Wikipedia

    en.wikipedia.org/wiki/Professional_Coin_Grading...

    Printed on the front of the blue paper insert is the coin's type, denomination, grade, attribution, pedigree (if any), serial number, Universal Product Code (UPC), and other pertinent information. [11] [12] First-generation PCGS coin holders are smaller and lack the raised stackable edges of later issues. Their insert was printed on plain white ...

  9. Sovereign (British coin) - Wikipedia

    en.wikipedia.org/wiki/Sovereign_(British_coin)

    The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy ounces (113.0 gr; 7.32 g) of pure gold.Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery.

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