Watch List notes:

Great Britain, one dollar, oval George III countermark (1797-99) on a Mexico bust 8R 1792FM, encapsulated NGC XF 45. Sp-3765A; KM-634. Very attractive with light rainbow toning all over, very deeply impressed countermark with full details, an excellent specimen of a popular type once referred to as "the head of a fool on the neck of an ass."

Estimate: $600 - 900