Doonesbury by Garry Trudeau for November 12, 1971
Transcript:
Mike: What's this? Two dollars for a coke? Man: Sorry, kid, but the 90-day freeze is ending and prices are going up. Mike: But $2.00 for a coke. You can't do that! Man: LIssen, kid, don't tell me what I can and cannot do!! I've got three months of inflation to catch up on!
50 years later and $2 is a bargain