Watch List notes:

British Coins, Victoria, proof five pounds, 1887, small B.P. in reverse exergue, 'Jubilee' bust l., rev. St. George and the dragon (S.3864; W&R.285), certified and graded by PCGS as Proof 63 Deep Cameo, another beautiful example of this highly popular type, issued in only one year for the Jubilee celebration
The type generally issued in the proof set.
($55000-65000)