While looking through 12 rolls of older George VI nickels that was included in a collection I purchased a few months ago, I came across this oddity.
First I thought it was just a dirty coin or PMD
, but upon closer inspection this discolouration is spread evenly on all its surfaces including the rim. Overall the fields have almost no signs of damage and surprisingly has a lot of lustre.
Im curious to know if this would be what US collectors call a "Black Beauty", or just artificial toning as recognizing this particular error (if it would be considered that) is way over my head as I mainly focus on doubled dies.