Highly rare vintage signature in bold blue ballpoint pen on a 3x5-inch off-white card, dating to the 1970s. In good condition, with a minor crinkle that runs across, invisible when the card is viewed head-on, and excellent for matting with a favorite photograph. There is a third-party authenticator sticker on the back. Popular folk rock singer and songwriter Harry Chapin, who is probably best remembered for his moving, confessional song "Taxi", died in an automobile accident at the age of 39. His autograph is highly elusive in any format and this one is the real McCoy.