Watch List notes:

BRITISH COINS, George III, Bank of England, Silver Proof Five-Shillings (Dollar), 1804, laureate and draped bust right, top leaf to right of E, stops in C.H.K., rev Britannia seated left within crowned garter, inverted K under shield (ESC 160, dies D/2a; S 3768). Pleasing old tone, light surface hairlines and short mark on the reverse by head of Britannia, otherwise good extremely fine, reverse a little better, with some lustre and very rare.
from the David Sellwood collection

Estimate: £800-1000