The second cover that I received today from Viviana from Argentina. The stamps feature Lighthouses of Argentina Series II issued in 1997. Top L-R: San Juan de Salvamento and Punta Delgada and Bottom L-R: GaboVirgenes and Isla Pinguino Lighthouses can be seen on the stamps. This is also a jewel in my collection. Thanks Viviana for your thought of sending me two rare covers.