Cover with 'Gustave MULLER, 147, avenue d'Amerique, ANVERS (Belgique)' handstamp on front franked with Belgium 1922 60c olive and 1f carmine, 1929 5c slate green and 1929 2 x 5c+5c chocolate (SG 364, 367, 490 & 552) all tied by ANTWERPEN cds's dated 15.11.1930 and additionally franked with Colombia 1923 4c blue national issue and 1929 20c rose red SCADTA issue (SG 395 & 59) tied by CALI SCADTA cds's dated 2.XII.1930. Addressed to CALI with boxed CALI arrival mark on reverse dated 18 FEB 1930. A nice Belgian SCADTA origination.