Don't click below unless you're prepared to watch fourteen minutes of vintage commercials, starting with Rocky Graziano playing an old sea captain who sells Sugar Crisp. Later on, you'll hear comedian Jack E. Leonard as a mailman who sells Post Alpha Bits and a spot with Rory Raccoon (who I think is voiced by Mel Blanc with a "speed up" assist) selling Post Toasties Corn Flakes, plus there are a lot of great ABC promos and Marx toy commercials and things that may make you say, "Hey, I remember that one…" But don't click 'til you're ready.
By the way: I think a couple of these are repeats from other recent compilations to which I've linked. Don't complain. It's free.