Watch List notes:

BRITISH COINS, Charles II, Hammered Coinage, Silver Shilling, Second Issue with mark of value only, crowned bust left, value behind, initial mark crown, BR and HIB legend, no inner circle either sides, rev long cross fourchée upon quartered shield of arms, 5.57g (ESC 1013 R2; N 2763; S 3314). Attractive light tone, tiny flan split on obverse at 9 o'clock, otherwise bold fine and scarce.
from the David Sellwood collection

Estimate: £900-1000