Watch List notes:

BRITISH COINS, William and Mary, Silver Halfcrown, 1693, 3 over inverted 3, second conjoined busts right, rev crowned cruciform shields, William and Mary (1688-1694) monogram in angles, date surrounding Lion of Nassau at centre, edge inscribed in raised letters, dated QVARTO (ESC 521; S 3436). Well-toned, light bagmarks and surface hairlines, bold very fine.
from the David Sellwood collection

Estimate: £500-600