20 Dollars

The Eastern Caribbean Central Bank replaced the East Caribbean Currency Authority in 1983, and this note belongs to the transitional years when the new institution was still establishing its note series across eight member territories. The ECCB issues a single unified currency for all members, meaning the same physical note — same serial prefix system, same print run — circulates legally in Antigua, St. Kitts, Dominica, and five other jurisdictions simultaneously, an arrangement almost unique among central banks globally.

Thomas De La Rue's watermark security on this series was considered adequate for the period, though the ECCB moved toward more sophisticated features in subsequent issues through the 1990s.