What Kind Of Magazine Is Penthouse I Am In Search Of An Ad That Ran In Playboy, Penthouse Or Another Magazine In The 70's.?

I am in search of an ad that ran in Playboy, Penthouse or another magazine in the 70's.? - what kind of magazine is penthouse

The picture in the ad was a man (I think, in a swimsuit) and a woman with long brown hair and smooth (short pants, perhaps?) Here, on a beach. The woman was kneeling and holding a beer (Michelob, perhaps?) I was topless and very little chest. I'm not sure that the ad for Playboy (what kind of person who reads, ie Playboy) or beer or whatever. She made an impression on me when I was young. I may find a copy online. Thank you.