
to the CCF, CrankyCaptain! Unfortunately, your coin is not a doubled die. I'll hazard a guess at
Die Deterioration Doubling, but an actual expert will be along shortly to identify the specific type of doubling.
In the future, it's recommended that you also post pictures of the full obverse and reverse of your coin, as this will help with the diagnosis. Also, it's not necessary to specify "
no mint mark", as coins minted in Philadelphia did not have mint marks until the
War Nickels (1942-1945), cents from 2017 on, and all others from 1980 on.
Inordinately fascinated by bits of metal with strange markings and figures