18th Century, Ireland, Co Dublin, Dublin, Turner Camac, Farthing, 1792, Hibernia seated with harp, rev. cypher, edge plain (DH 390 obv., rev. unpublished). Large metal cud on reverse rim, green patina, good fine, extremely rare (£50-80)

The reverse die is characterised by a linear outer circle; previously published dies all have a toothed outer circle