Watch List notes:

Tristan da Cunha Ten Pounds (3) 2010 Battle of Britain 70th Anniversary - Great British Heroes 5oz. Silver Proof, issue limited to 250 pieces, 2010 Douglas Bader 5oz. Silver Proof, issue limited to 250 pieces, 2010 Winston Churchill 5oz. Silver Proof, issue limited to 250 pieces nFDC-FDC in the boxes of issue with certificates

Estimate: 100-200 GBP