1923/1928, SERVICIO DE TRANSPORTES AEREOS EN COLOMBIA three values ‚Rio Magdalena and Nevada del Tolima volcano‘ in different quantities incl. 20c. grey (400), 40c. violet (450) and 60c. brown (400) mostly in large blocks to complete (folded) sheets, mixed fine MNH with a smaller part with typical uneven/faulty gum, Mi. 32, 35+44, € 9.150,-- (+100% for the MNH stamps = approx. € 16.000,-- +) (T)