6 Shillings 8 Pence - George II FERDND VI D G HISPAN ET IND REX, imperial crown, Mexico City, countermarked

Jamaica's chronic shortage of small currency in the mid-eighteenth century forced the colonial authorities into a pragmatic solution: countermarking Spanish colonial eight-reales pieces — here a Mexican issue of Ferdinand VI — for local circulation at a fixed tariff value. The 1758 date reflects the Spanish host coin, not the countermarking event itself, which likely occurred under standing orders authorizing the practice across multiple years of George II's reign.

KM#8.3 distinguishes this by the specific host coin type, the crowned GR countermark applied at Kingston being the authenticating device. Forgeries of countermarked colonial issues were a documented problem throughout the Caribbean.