For those "youngsters" out there from us over 40

1972, N. Fl. I'm 21 and driving my 70 RR and pull into a Sunoco station durring a "gas war" and fill up with Sunoco 260 for $019.9 per gallon. FACT!
In the Spring of 1974 , I remember seeing Chevron Premium (~98 MON octane) selling for $0.56 / gallon ... two years earlier , I could imagine that their Custom Supreme (105 MON octane) was selling for half of that !