Hi. I'm new to the site. I am just sorting through some of my coins and I have several Olympic 50p coins (from the UK Royal Mint collection of 29 different coins) that are in individual sealed packs (from the Royal Mint). I realised that one of the coins is the wrong type for the pack that it is in; it is a rowing coin but is in an athletics pack. The pack is sealed. Is this a common error? Does it make much of a difference? Thanks
