Chris Yang, co-founder of Coins Value, has shared three key factors to look out for when determining whether your coins are ...

You can start this week. If there’s a little bit of grunge or other evidence of time on your coins, you might be tempted to give them a deep cleaning to put their best faces forward to the dealer.

If you've got old coins gathering dust at home ... However, Warwick & Warwick auctioneers caution against cleaning a coin ...

If you've got a stash of old coins gathering dust at home ... "You may be surprised to know that cleaning a coin can often reduce its value - so don't do it," its specialists claim.