Windsor Mint Battle of Britain Twelve Silver 24K Coin Complete Cased Set C. Limited Edition Number 152 of 9,999. 2020, we commemorate the 80th Anniversary of the Battle of Britain – secure this rare complete set now and be one of the few collectors in Britain to own this historical set! Each stunning strike in the’Battle of Britain’ complete set has been minted in the highest quality’PROOF’ and is layered with finest 24-carat silver. Strictly limited to just 9,999 complete collections worldwide, this historical treasure is already a sought-after edition amongst collectors.