Almost from the start, 'Penthouse' pictorials showed female genitalia and pubic hair when this was considered by many to be obscene.

In the 1970s and 1980s, the strongest prohibition was against showing pubic hair or adult genitalia.

In practice, pornography showing genitalia and sexual acts is not ipso facto obscene according to the Miller test.

Few mainstream American films show male or female genitalia in what is often called a full frontal nudity scene.

The film is notable for its nude wrestling scene, which broke the convention at the time that a mainstream movie could not show male genitalia.

"Obviously, if you show genitalia in your window, people are going to be offended."

Japan required an edited version of the video due to censorship laws on showing female genitalia in media.

"Businesses can't show genitalia, but this sign is not a crime," Ms. Greer said.