More rare labels from SCADTA airlines in Colombia.
Year: 1926, Gummed. Günter Mair's catalogue no: - CLM-B-4, perforated 11 ¾ , sheets of 20(4x5)
issued at NEw York for customers in USA, green/white, 5*****
Year: 1932, Gummed. Günter Mair's catalogue no: - CLM-B-16a, perforated 11 ¼ , sheets of 25(5x5)
"&" modified, issued in cooperation with Pan American Airways, dark blue-grey or blue-grey/white,