I am really glad I can share this 1951 Aviaco brochure with you all. This kind of timetable sheets were mailed to travel agents and other subscribers as a mailing list, and of course they were printed in air mail paper. At this time, Aviaco was a truly independient airline (state-owned INI bought the 50% of the shares in 1954) and it was quickly expanding across the Spanish domestic market including the Canaries and Spanish Guinea, plus they also had some flights to northern Africa and Marseilles. (The route network was actually not very different from this 1968 example)
Mapa de rutas y esquema sinóptico de la red, con indicaciones de los cuadros horarios que se debían consultar. En esta época, Aviaco volaba en Galicia a Santiago y al aeródromo de Lugo, que se usó durante muy poco tiempo como aeropuerto central de Galicia y que hoy en día se usa para aviación deportiva, aunque periódicamente se habla de posibles otros usos.
Route map and scheme showing the appropiate schedule tables; At the time, Aviaco was flying to both Santiago and Lugo, an airport which was for a very short time as the main Galician gateway and which is now used for leisure/sport activities, even if future alternative uses are reported in the press from time to time.