Design: Plain and simple lettering is used for the government-run service, with no need for eye-catching point-of-purchase visual appeal. The service's official stamp, a heraldic bugle or hunting horn, modernized with electrical flashes, is depicted on a scroll which has been unfolded into a sort of shield shape.
History: Label scan courtesy of collector Martín Javier Gorosito of Argentina, who notes: "This record was a service of the Compañía Argentina de Correos y Telégrafos. The sender recorded the message in a special sound booth, where an acetate disc was made by an operator, and then it was sent to the recipient by regular mail. The flexible cardboard and acetate records produced a good, loud sound."