Watch List notes:

BRITISH COINS, Charles II (1660-1685), Hammered Coinage (1660-1662), Silver Shilling, First Issue, crowned bust left, initial mark crown, no inner circle or mark of value either sides, rev long cross fourchée upon quartered shield of arms, 5.88g (ESC 1009; N 2762; S 3308). Dark old tone, obverse with surface marks and tiny digs in places, good fine / about very fine and rare.
from the David Sellwood collection

Estimate: £500-600