In one bizarre shot, Hendricks is shown straddling a heavily-tanned man in small swimming shorts, while a wild-haired clown appears in the background.

A representative for the erotic men's magazine recently posted the picture on Twitter.com, teasing readers by writing, "Who is the famous actress in this photo from the July 1999 issue?

"For those who guessed Christina Hendricks from 'Mad Men,' way to go! She's on the right and helped illustrate an article on summer shooters."