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All Posts Tagged With: "Coin Populations"

Heritage adds CAC Population Data to Rare Coin Auction Archives

A very quick way to measure a coin’s rarity is to look at how many coins of a particular date have been graded by the major grading services. Three figures are key as a rule of thumb in determining rarity:

  • The population of a coin in a particular grade, which shows how difficult the coin might be to replace exactly
  • The population of a coin in all higher grades, which shows how difficult a coin might be to upgrade
  • The population of a coin in all grades, which shows how difficult a coin might be to find at all.

The first two figures above are often written in shorthand. For example, a coin with a population of 100/4 has 100 known in the same grade and four known in higher grades. A coin with a population of 1/0 is the finest known to the grading service that certified it.

One of the features that has long been available on the Heritage Web site listings and archives HA.com/Coins are population reports. PCGS and NGC keep track of every coin they grade, and Heritage is generous enough to post this information, in condensed form, on the web page for every US coin.

Now, Heritage has added the CAC population data to it’s population listings.

As an example, the table you see here covers an 1911-D $20 Saint Gaudens Double Eagle, graded MS65 (in this case by NGC). Under the header “Population”, you can see that the PCGS Population Report shows 1731 1911-D $20 Saints with an MS65 grade, NGC Census figures show 1831 similar coins and CAC has stickered 130.
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