What can determine an average off-metal error to a premium error? Well, of course eye appeal, original color, grade and if the coin is full RED, play important parts to factoring the correct price for an off-metal error. You will pay more for a better looking example.
What about the date? Does a partial date make any difference? It certainly does if you collect by date. Would you rather have a coin with a hard to make out partial date, half of a date, or a full date with a full rim?
As you can see from the highlighted example, there is greater eye-appeal for a full dated example with a separated rim. There is no question what the date is or hardly the need for a loop. Off-metals like that are rare and certainly deserve large premiums. They certainly will be quicker to sell than any of form of partial dated specimens. Always look for quality, original, full dated examples & you will never go wrong when it comes time to sell. Do expect to pay more to obtain them. This type of premium off-metal with full dates and full rims will occur on all off-metals, for example a Quarter on a Cent. The larger the denomination, the scarcer they become. This is also possible on double denomination errors.