7 rarest old coins including London Mint sovereign that could be worth up to £25,000
7 rarest old coins including London Mint sovereign that could be worth up to £25,000 11 Mar 2021, 13:06 Updated: 11 Mar 2021, 14:58 COIN collectors or people who’ve inherited old change could be sitting on a small fortune. But as the rarest coins are all from before decimalisation - the switchover to the currency system we use now - you won’t find them in your spare change. 15 The Sun has rounded up some of the rarest old coins, according to an expert Instead, it’s likely that the people who could have these in their home are serious collectors and those who’ve inherited pieces from ...