5x2 Vintage card in black fountain pen ink by Mary Roberts Rinehart. Tipped to a larger card. In very good condition. (1876-1958) Mary Roberts Rinehart was an American writer, often called the American Agatha Christie. Rinehart published her first mystery novel The Circular Staircase in 1908, which introduced the "had I but known" narrative style. Rinehart is also considered the source of the "the butler did it" plot device in her novel The Door (1930), although the exact phrase does not appear in her work. She also worked to tell the stories and experiences of front-line soldiers during World War I, one of the first women to travel to the Belgian front lines.Comes with a full Letter of Authenticity from Todd Mueller Authentics.