Ejemplares de este tipo

1996-abr-02 – (en) Specimen; red overprint "MUESTRA SIN VALOR" on both sides, punch hole cancelled, Red overprint numbered 3 digits on center left bottom.Firmas: MUM, FCS(en) Specimen; red overprint "MUESTRA SIN VALOR" on both sides, punch hole cancelled, Red overprint numbered 3 digits on center left bottom.