Issued by the Republic of Paraguay in 1939, this 5 Pesos Servicio Oficial stamp honors the 50th anniversary of the country’s National University (1889–1939). The design features portraits of President Juan Bautista Egusquiza Escobar and Dr. Manuel Domínguez Zubizarreta, symbolizing leadership in education and national progress. Printed in blue and black, it carries the inscription “Homenaje a la Universidad” (Tribute to the University). A significant historical issue, it reflects Paraguay’s commitment to higher learning and intellectual growth. A fine collectible for those specializing in Latin American or educational-themed philately.