Ultra-scarce one-page letter on a 5x7-inch white sheet, handwritten and signed in blue ballpoint pen in 1963. In very good condition, with a horizontal mailing fold, and, as far as we can ascertain, the longest writing sample of the character actress known to exist. Dumont was unforgettable as the haughty, straight-faced comic foil in seven Marx Brothers films, dubbed "The Fifth Marx Brother" by Groucho. She played similar roles alongside other great comedians, including W.C. Fields, Laurel and Hardy, and Jack Benny, by her own admission understanding virtually none of the jokes, which may explain why she was so uproariously funny. Not long before she penned this letter, Dumont starred in her only horror flick, playing Persephone Updike in William Castle's Zotz! (1962).