Registered cover franked with SCADTA 1923 30c dull blue and 20c grey with 'R' Registration overprint in red (SG 41 & R50) tied by MEDELLIN SCADTA cds dated 21. VI. 1924 with boxed 'RECOMENDADO CORREO AEREO - MEDELLIN' registration marking in blue alongside. Addressed to CARTAGENA.