Source: http://www.letterheady.com.Image created by Shaun Usher using image from Kill Ugly Radio. License: All Rights Reserved.

Letterhead stripped of typewritten letter (below).

Source: http://www.killuglyradio.com.Kill Ugly Radio. License: All Rights Reserved.

"The PMRC, formed in 1984, are the committee responsible for the introduction of Parental Advisory stickers on CD covers. The committee was formed by the 'Washington Wives'; four women who are also married to members of government, most notably Al Gore's wife, Tipper Gore. Musician Frank Zappa strongly opposed this form of censorship and sent the following letter (and others) to all members of his fan club." — Letters of Note

Source: http://www.zappa.com.Image via Zurkon_Waxon Zappa.com. License: All Rights Reserved.

A Frank Zappa letter used for the cover of a sampler LP (Shut Up 'N Play Yer Guitar) sent to radio stations in 1982.