Hello,
Thank you for the inquiry.
NGC certification number 3019024-003 has been added to your inventory, however, this coin is not eligible for competitive NGC Registry sets.
When our graders designate something as a MINT ERROR, as a rule, these are ineligible for the NGC Registry. Mint errors are unique, no two are alike, and therefore to allow them in the NGC Competitive Registry would be unfair practice.
An exception to this rule is the US Presidential Edge Lettering error set; these coins are more common and are similar; as such, we can assign them a competitive registry score and require others to obtain similar coins to fill their registry set. Therefore, competitive sets for these PEL error coins are the exception to the rule.
If you need further assistance, please email registry@ngccoin.com.