GIBRALTAR. 1/2 Bit, ND (1770-72). PCGS Genuine--Damage, Fine Details.
KM-6 (Martinique); Pr-20 (Dominica). Type II countermark, blunt heart shaped cut-out with ornamental edges. Struck upon a Mexico 1/2 Real 1750 with title of king Ferdinand VI. Some corrosion is visible. KM attributes this coin to Martinique, but it is now believed to be from Gibraltar.
Estimate: $600 - $800