Hi,
The other day I had realised that I had obtained an error 2013 50p coin where not only is the coin a downturn but also that the queen's mouth is upside down (frowning). I have a holiday coming up soon so I am intending on selling the coin so that I can get some more spending money. What would the value be on this coin and how would I be able to promote the sale of this coin, if it does have some value?
Thanks! I have attached pictures of the coin.