Some ~1975 period posters I made for a 3d modeling project I've been working on for what seems like forever. They're designed to be displayed on signs in an airport terminal.
References:
Percy's Rent-A-Car: Budget Rent-A-Car ad (1973)
Lunair: Interflug ad (undated, likely 1960s)
EquestriaJet: Eastern Airlines Ad (1970)