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too many varieties, the book would be huge and very hard to do.
Please don't take this wrong since my point is not to endorse any particular software or literature.
But I came to the conclusion that I personally want to know 'ALL' of the existing errors and varieties that are present among the ALL of the coins that I currently own: especially BEFORE I sell them.
In order to do this it appeared that I was going to have to acquire multiple heavy books along with links to applicable web sites geared toward pointing out the characteristics of each of these varieties etc...
After much trial and error I finally bit the bullet and signed up for a yearly on-line subscription to PCGS' CoinFacts which does an excellent job providing high resolution photos and related auction sale prices of the various grades of
US coins including their varieties.
I just wish I could find an effective low or no cost web site that actually effectively walks one through the attribution process for the bust coinage (half dimes, dimes, quarters, and halves).
CoinFacts will display the multiple varieties and prices of these coins but that is where it for the most part ceases.
CoinFacts does point out every now and then using arrows the location of the attribute that is the defining characteristic of a particular variety but only does this on a limited and inconsistent basis.
The efficient and accurate attribution of ALL of these beauties is a completely different story since the determination of each variety (and sometimes a coin can have 20 or more varieties) involves much knowledge and know-how relating to attribution.
I guess I really did not expect PCGS to include all of that specific procedural information within its product but it sure would have been sweet if they graphically explained the key particular anomaly for ALL
US coins in detail including tips on how to locate identify the variation...
In summary abundant and very accurate information exists within CoinFacts that can be used as a one of many critical components to successfully identify exactly what type of coins (including varieties) are present within anyone's personal collection.
IMO,
mdpmedia