This Ecuadorian stamp began as a 10 centavos definitive depicting the Palacio de Gobierno in Quito, printed by the Columbian Bank Note Company. It was later overprinted in red with the inscription “FOMENTO AERO COMUNICACIONES – 20 CTVS”, converting it into a provisional airmail issue. The overprint promoted the development of aeronautical communications in Ecuador, an important initiative during the early expansion of aviation in the region. The contrasting green and red colors make this overprinted variety a striking and collectible item among South American airmail enthusiasts.