Hi all, Well found some more time to hunt through the load on coins brought at aunction last summer, double struck 10p being a good find, well this one was put on one side as scrap, BUT, on closer look it turns out to be a UK penny George V1 1937-45c minted on a very scrappy farthing sized blank - I think. Not sure why some of the surface appears to be a ground finish and the rest is pitted but i'm sure i'm talking to the right people - any ideas?
Sure looks like a wrong planchet error to me, as for the surface I'd say it was found in the ground - corrosion.
It's in such bad shape that there's no way to tell whether it started out as an authentic error or as a coin that was trimmed outside the mint.