50 Dollars

Trinidad and Tobago moved to polymer on the 50-dollar denomination as part of a broader security upgrade that the Central Bank rolled out selectively by value rather than converting the entire series at once. De La Rue's Gateshead facility handled the substrate printing, with the transparent window integrated directly into the polymer rather than applied as a separate element — a construction that makes convincing counterfeiting significantly harder than with windowed paper notes.

Pick 59 replaced the earlier cotton-paper 50-dollar issues that had circulated since the 1990s. Polymer notes in Caribbean climates tend to outlast paper by a considerable margin, which was almost certainly a factor in the decision given Trinidad's humidity levels.