Cover franked with 1952 5 x 1s brown on front and 5c blue green, 25c rose red and 1s brown on reverse (SG 775, 779 & 782) all tied by multiple strikes of undated CORREOS Y TELEGRAFOS LA OROYA cancels in black with manuscript 'R 211978' registration marking on front. Addressed to SWITZERLAND with arrival cds dated 3. V 1953 on reverse.