Season 1, Episode 3 (Marriage of Figaro). It finally happens. Pyrex makes it's debut on Mad Men, ever so subtly. Betty serves chips in a yellow 404 mixing bowl at Sally's party. Some things have not changed since 1961, putting chips in a Pyrex bowl at a birthday party is one of them.
Kitchen Scene from Marriage of Figaro
I am going to be on the look out for the other mixing bowls in the typical Primary 400 series set the rest of the season. I wonder if the set decorators went old school and purchased a whole set or just the yellow bowl.
As the party gets going, the chips start disappearing...