Every month, an airline printed advertisement, minus airline name and logo, is displayed for your guessing pleasure on Guess The Airline. The following is the answer to a previous game.
Once again, this was an advertisement from a 1977 issue of The Economist. Are you ready? Scroll down!

How to guess it?
The basic color scheme was instantly recognizable. But in case that didn’t help, there was also the fleet: DC-8, DC-9, Boeing 727 and Boeing 747.