Registered cover franked with 1935 2 x 4c carmine & blue and 1939 1c olive green TAX issue with '1939' overprint (SG 297 & 399) tied by GUATEMALA CITY cds's dated 18 MAY 1939 with boxed registration marking alongside. Addressed to USA with lovely blue 'Nurse & Quetzals' RED CROSS cinderella label inscribed 'AYUDE UD A LA CRUZ ROJA GUATEMALTECA' tied on reverse by arrival cds.