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  2. Numismatic Guaranty Company - Wikipedia

    en.wikipedia.org/wiki/Numismatic_Guaranty_Company

    NGC Cert Lookup verifies all NGC-certified coins and helps combat holder counterfeiting. Using the label serial number, NGC will reveal a coin's date, denomination, grade, photo (if any), and pricing and Census info. NGC Coin Explorer lists key info about many coin issues, such as mintages and values. [15]

  3. Certified Acceptance Corporation - Wikipedia

    en.wikipedia.org/wiki/Certified_Acceptance...

    The firm evaluates certain numismatically valuable U.S. coins already certified by Numismatic Guaranty Corporation (NGC) or Professional Coin Grading Service (PCGS). [1] [2] Coins that CAC deems high-end for their grades receive green stickers, [3] which usually add premiums ranging from single digit percentages to 92% or more.

  4. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Counterfeit NGC and PCGS holders have been reported, but significant measures have been taken by both services to remedy the problem, such as NGC's use of photographic verification for every coin certified and both services' employment of serial number verification and anti-counterfeiting features in their holders.

  5. Hunting Rare Coins? 7 Strategies and Websites To ... - AOL

    www.aol.com/finance/want-rare-coins-worth...

    The old cliché about finding rare and valuable coins is that you should start by digging around in your sofa. That's not necessarily bad advice. However, chances are the only loose change you'll ...

  6. 1893-S Morgan dollar - Wikipedia

    en.wikipedia.org/wiki/1893-S_Morgan_dollar

    The two largest coin grading companies, PCGS and NGC, have graded 47 in higher grades. [7] In 2014 the Eliasberg 1893-S Morgan dollar sold for US$646,250 at auction. It is a Professional Coin Grading Service (PCGS) graded coin in MS-65. [1] In 2021, a PCGS graded 1893-S Morgan dollar in MS-67 sold for US$2,086,875.00. [6]

  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. Waitangi crown - Wikipedia

    en.wikipedia.org/wiki/Waitangi_crown

    A Waitangi pattern featuring the smaller crown design, graded MS64 by NGC, [16] sold for US$72,000 in a 2021 Heritage auction, becoming the most expensive New Zealand coin. [17] The other known example of this pattern design is held by the Reserve Bank of New Zealand .

  9. Standard Catalog of World Coins - Wikipedia

    en.wikipedia.org/.../Standard_Catalog_of_World_Coins

    Standard Catalog of World Gold Coins: With Platinum and Palladium Issues: 1601–present, 6th Edition, publication date 2009, Krause Publications, ISBN 978-1-4402-0424-1 Digital copy available separately. Unusual World Coins, 6th Edition, publication date 2011, Krause Publications, ISBN 978-1-4402-1702-9 Digital copy available separately.