A lovely celebratory poster for the Metro’s opening year, showing the overall envisioned network at the time. Only a short section of the red Linea 1 was actually open initially – as can be seen running across the poster about a third of the way down – and the eventual system as built today is substantially different to this vision (March 2014, 3.5 stars).

Of particular interest are the black diamonds dotted liberally around the poster, which contain Mexico City-like icons for some 40 proposed stations on the red Linea 1 and yellow Linea 2, some of which were never constructed.

See also this very basic Metro map from the same year.

Source: Tercera Cultura article on “Ghosts of the Santiago Metro” (in Spanish)