Watch List notes:

British Tokens, Seventeenth Century Tokens, Kent, Woolwich, Iohn Ladbrooke, halfpenny, 1666 (W.573), damage at 11 o'clock on obverse and at about 12 o'clock on reverse, fine/good fine, exceedingly rare
Not represented in the Norweb, Hogarth, Mann or Joslin collections.
Estimate: 100-150 GBP