The War of Jenkins' Ear pitted Great Britain against the Spanish Empire between 1739 and 1748 over territories in the Caribbean, and it was in this context that the capture of Portobello took place. Portobello was a small settlement in Panama that was one of the main targets for the English, along with La Guaira in Venezuela and Cartagena de Indias in Colombia. Vernon bombarded and destroyed the city easily, due to the small numbers of Spanish troops defending it.
This coin is part of a series produced to commemorate the victory over this stronghold. On the obverse of this medal are 2 figures: Admiral Vernon and Commodore Brown, an officer of the English Navy who accompanied Vernon on these campaigns. The image is encircled by an inscription in English: "OF . ADMIRAL . VERNON . AND . COMMODORE . BROWN." Below the image, the exergue reads: "BY . COURAGE . AND . CONDUCT." The decorative edging is incomplete due to the deterioration of the medal's condition.
On the back, the bay of Portobello is depicted, encircled by the inscription "WHO . TOOK . PORTO . BELLO . WITH . SIX . SHIPS . ONLY . NOV . 22 . 1739." The decorative edging is incomplete due to the deterioration of the medal's condition.