What’s the most collectable Sovereign? The 2014 issue because it has the lowest mintage at just 4,613? Its edition limit was 7,500 individually with a further 3,500 available in sets though.
So less than half of the coins available to be struck were actually required. It wasn’t a hugely popular Sovereign at the time, which has resulted in it being very scarce today.
The 2017 Proof Sovereign has a far higher mintage at 13,500 – almost three times that of the 2014 Sovereign, but it is far more collectable.