Miss Hotel Bar Butter, 1952.
It’s still around. She’d be pushing 75. I’m not sure about the name of this stuff; while one may assume that Hotel Butter has a superior quality – hotels had better refrigeration than most homes many years ago, after all – the idea of Hotel Bar Butter brings to mind a dish of melted pats with cigarette butts stubbed out in the middle.
A Ghost Ad for the brand can be found here.