Issued in 1974 by the République Rwandaise, this 50 centimes stamp honors the Italian inventor Guglielmo Marconi, pioneer of wireless telegraphy. The design by J. Van Noten illustrates early radio transmission equipment, progressing symbolically toward modern satellite communication in the background. The inscription “La télégraphie sans fil depuis les travaux de Guglielmo Marconi” celebrates his revolutionary contribution to global communication. A fine example of Rwanda’s scientific commemorative issues of the 1970s.