The term " message in a bottle " has been applied to techniques of communication that do not literally involve a bottle or a water-based method of conveyance , such as the Pioneer plaque ( 1972 , 1973 ) , the Voyager Golden Record ( 1977 ) , and even radio-borne messages ( see Cosmic Call , Teen Age Message , A Message from Earth ) , all directed into space
Teen Age Message
Teen Age Message
Message in a bottle