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  2. 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 ...

  3. Sheldon coin grading scale - Wikipedia

    en.wikipedia.org/wiki/Sheldon_coin_grading_scale

    Coins that are very badly corroded may also fall under this category. 2 Fair FR Some detail shows 3 About Good AG Readable lettering although very heavily worn. The date and design may be worn smooth. 4 Good G, G4 Rims of the coin are slightly worn, design is visible, but faint in areas, with many parts of the coin worn flat.

  4. 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 ...

  5. Coin slab - Wikipedia

    en.wikipedia.org/wiki/Coin_slab

    After the coins are reviewed and certified a holographic label is attached to the slab. [4] [5] The earliest coins that were slabbed by the major coin grading companies did not have holograms. PCGS began adding a hologram to the reverse of their holders in 1989. [6] NGC began adding a hologram to their coin slabs in 1990. [7]

  6. Australian Silver Kookaburra - Wikipedia

    en.wikipedia.org/wiki/Australian_Silver_Kookaburra

    No proof coins were minted between 2006 and 2011; however, there was a 1-ounce silver proof Kookaburra colored coin struck in 2012 for the Discover Australia coin series. [4] Since 2012, the proof coin has been struck in high relief only. Special editions such as privy marked, colored and gilded are often available. [5]

  7. List of bullion coins - Wikipedia

    en.wikipedia.org/wiki/List_of_bullion_coins

    Bullion coins are government-minted, legal tender coins made of precious metals, such as gold, palladium, platinum, rhodium, and silver.They are kept as a store of value or an investment rather than used in day-to-day commerce.

  8. Bullion - Wikipedia

    en.wikipedia.org/wiki/Bullion

    Bullion coins are contemporary precious metal coins minted by official agencies for investment purposes. Some bullion coins have been used as currency throughout the 20th century, such as the Maria Theresa thaler and the Krugerrand. Modern bullion coins generally do not enter common circulation despite having legal tender status and nominal ...

  9. United States Mint coin sizes - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin_sizes

    [1] Seven distinct types of coin composition have been used over the past 200 years: three base coin alloys, two silver alloys, gold, and in recent years, platinum and palladium. The base metal coins were generally alloys of copper (for 2 cent coins and lower), and copper/nickel (for 3 and 5 cent coins). Copper/nickel composition is also used ...