Quite similar to the last post, this later iteration of the Czechoslovak route network is equally dense but a bit clearer. Dozens of routes fan out from Prague, across Europe, North Africa and onward to Asia and the Americas. Another web spins out from Bratislava, but these are confined to Europe.
Geneva looks to be bypassed on the way to Casablanca, from whence the flight continues to Dakar, then apparently just to Freetown, although confusingly Conakry is shown as a dot on the route line, it's lowercase suggests it might not have been a pit stop. Additionally, dashed lines show what are likely some sort of connecting services, linking Dakar to Bamako and Freetown to Abidjan, Accra, and Lagos.