Great article stujoe, hope you will not delete this article for future reference of error and variety collector, there are many major and minor varieties of coin especially in the US were most of the market are base and were it originated, there are issue concerning collectors between those who collect normal struck, mint and proof differs from collectors who collect errors, that is why another grading company was formed, I am just asking correct me if I'm wrong,But the thing is that most of the unusual or obvious error coin was purchased in the mint, that other error collector may not have it, for before it goes to circulation the clever one come first and when it is offered to the market it is priced as premium, I don't now what premium is whe converted to US dollar, the point is that error collector will have a hard time owning one obvious coin as the one you posted since not all collector have enough money to buy a coin like that, for me that kind of collection is only applicable to those who have lots of money, as for other error and varieties that are priced as premiun but needed a keen eye to detect it from circulation that is where I am interested since the lostduchman have an article on it and also browse it for several times maybe you can give a least of example for the viewing pubic on what to look for,thier date thier erro or those who are priced as premiun especially in USA for I am base here in europe even if I like to have one, it is near to imposible. like the DDO or DDR Thank you.can you also make a list of error coin that are intercept by the clever one in the mint so the other reader may know if they find one is one of rarity, for the process of making one and getting in circulation is so remote because of strict policy of the mint and the US goverment.