Watch List notes:

BRITISH COINS, Charles II, Silver Shilling, 1668, second laureate and draped bust right, rev crowned cruciform shields, interlinked C's in angles, garter star at centre, edge milled (ESC 1030; S 3375). Pleasing light tone, a few light hairlines and tiny surface flaw before portrait, abrasions to central reverse, otherwise good fine, reverse better.
from the David Sellwood collection

Estimate: £300-400