Watch List notes:

Amlwch, Parys Mines Co. Contemporary copies – halfpenny 1791, druid's head left, rev PMCo cypher 'THE PARIS MINERS, edge 'YABLE IN LANCASTER LONDON OR BRISTOL, 28mm/9.22gm (DH438b),
good Extremely Fine with lustre; halfpenny 1793, druid's head left, PMCo cypher, edge engrailed, 29.5mm/10.51gm. (DH 448b) brass and rare thus, about Extremely Fine for issue; halfpenny 1793, druid's head left, rev RMCo cypher, edge obliquely milled, 29.5mm/8.93gm, (450a), Extremely Fine, toned. [3].