Lynette Alice "Squeaky" Fromme aka Red. Member  of the so-called Manson Family.  Fromme was paroled from prison in August 2009 after serving time for attempting to assassinate President Gerald Ford in 1975.
 
4 1/2" x 10" Barnes & Noble envelope with 3 lines of handwritten address including her name and prison number. Hand signed, Lynette Fromme.