Ascension Island (2) Fifty Pence 2002 Queen Elizabeth II Golden Jubilee Silver Proof with gold-highlighted obverse mule (St. Helena Obverse KM#23a paired with Ascension KM#15 Reverse), and Fifty Pence 2002 Queen Elizabeth II Golden Jubilee KM#15 Proof nFDC
Estimate: 100-120 GBP