We all know Goldfinger, the titular menace from the early, classic James Bond film Goldfinger. And what was Goldfinger obsessed with? Why, gold, of course!
Well, gold was ultimately Goldfinger's undoing, but in this (joke/proposed) ad for Goldline (or any other gold investment company), Goldfinger could tell us that he didn't have to go to all that trouble and risk himself to make a fortune from gold: all he had to do was call Goldline! (If only he had known, he'd still be alive today to cheat at cards at fancy hotels!)