When Did Yvonne D'Angers Die?

Yvonne d'Angers, also Yvonne Boreta or Yvonne Mahviz Boreta, was an Iranian-born stripper and actress based in San Francisco, California. Known as "the Persian Lamb" while dancing in San Francisco clubs, her most important contribution may be from a landmark obscenity case which made San Francisco the first city in the United States to legally allow topless dancing.