Cover franked with USA 1926 2c carmine and 5c deep blue (SG 634 & 638) plus 1923 30c blue SCADTA issue with 'EU' consular overprint for use in the USA (SG 30F) all tied by SAN FRANCISCO cds dated JUL 16 1929 with BARRANQUILLA SCADTA cds alongside and fine green on white 'BY AIRMAIL IN COLOMBIA' airmail label. Addressed to MEDELLIN with transit & arrival marks on reverse.