Watch List notes:

Halfpennies (20) 1718, 1718 No Stops on Obverse, 1719 (2), 1720, 1721 1 over 0, 1723, 1729, 1734 (2, each with a different die spacing), 1738, 1743, 1744, 1745, 1746, 1753, 1799 6 raised gun ports, 1799 5 incuse gun ports, 1806, 1807 VG to VF

Estimate: 175-375 GBP