3p brown 'Zapatos' EXPORTA 'CORREOGRAMA' postal stationery telegram letter sheet (UPSS #CLS17, H&G Unlisted, without watermark) used with added 1975 2p gold & ultramarine and 1979 50c olive yellow & chestnut 'Exporta' issue (SG 1361d & 1482) tied by MAZATLAN cds's dated 17 NOV 1979. Sent airmail to BELGIUM with manuscript arrival notation on reverse. The envelope has a punch hole at left but an uncommon item in used condition.