Some George I + II Old Coppers. Farthings 1754 large + small dates and A Dump Half Penny 1718. Dump referring to both farthing and Half penny first issues 1717-1719 the coins were smaller diameters than normal but much thicker. The half penny dump issue looks like a farthing but weighs in @ a hefty 28.8 grms. The 2nd issues 1719 onwards were larger diameter but thinner and kept the same 28.8gr weight.
Nice Z. Always good to see a bit of early copper, and those Coker designs for the George I coinage are particularly pleasing. 1718 halfpennies: there's a reverse variety to look out for which has the first N of Britannia struck over an A. Very few known and generally unlisted, though an example does appear in the Nicholson collection. My own example (attached) is superior to the Nicholson coin.