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The free site publishes information about all federal and most non-federal U.S. coin issues, including their rarity statistics, PCGS Price Guide values, population data, public auction performances, die varieties, and photographs.
Numismatic Guaranty Company ( NGC) is an international third-party coin grading and certification service based in Sarasota, Florida. It has certified more than 60 million coins. NGC certification consists of authentication, grading, attribution, and encapsulation in clear plastic holders. NGC is a subsidiary of Certified Collectibles Group ...
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.
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 ...
The 50 State quarters (authorized by Pub. L. 105–124 (text) (PDF), 111 Stat. 2534, enacted December 1, 1997) was a series of circulating commemorative quarters released by the United States Mint. Minted from 1999 through 2008, they featured unique designs for each of the 50 US states on the reverse .
Recent encapsulations and sales at auctions reveal 1995 and 1996 examples of mintages on foreign planchet. A few 1996 Lincoln cents were struck on stock designated for Singapore. There are 1997-D, 1998 and 2000 dated Lincoln cents struck on foreign planchets, but not identified by PCGS or NGC as to the country the mintage was intended.
The Sheldon Coin Grading Scale is a 70-point coin grading scale used in the numismatic assessment of a coin's quality. The American Numismatic Association based its Official ANA Grading Standards in large part on the Sheldon scale. [1] The scale was created by William Herbert Sheldon .
The following list is a chart of the most expensive coins. Most of these are auction prices. Several private sale prices over $2m are not in this list yet.