500 Francs

The Banque des États de l'Afrique Centrale serves six CFA franc–using nations simultaneously — Cameroon, Central African Republic, Chad, Republic of Congo, Equatorial Guinea, and Gabon — and signature combinations on any given note indicate which national monetary authority countersigned it, not just who held the top BEAC posts at the time. The three signature variants here reflect a relatively compressed period of administrative turnover at the BEAC governorship while Aleka-Rybert held her position continuously as the second signatory.

The "T" suffix in the Pick reference denotes the Chad circulation prefix, distinguishing this note from identical-design issues assigned to other member states.