Watch List notes:

Fifty Pence 2015 75th Anniversary of the Battle of Britain Gold Proof with Rank-Broadley portrait, S.H39 FDC uncased in capsule, no certificate. The Battle of Britain Fifty Pence with Rank-Broadley portrait was issued only in the Gold Proof set of the year. Only 99 sets were issued, a rare opportunity for the Fifty Pence collector obtain this rare issue as a single item

Estimate: 800-900 GBP