2143 1920 Compania Colombiana de Navegacion Aerea 30c on 10c black & 30c on 10c green, aeroplane over lighthouse & cliffs plus 30c on 10c black & 30c on 10c green, aeroplane over sea & mountains. VF UN. SG unlisted. (4) (P) $400 $700
2144 1920 Compania Colombiana de Navegacion Aerea 10c green, aeroplane over sea & mountains M & U, 10c green, aeroplane over lighthouse & cliffs UN, plus Sociadad Colombo Alemana 30c brown-rose U. Yv 10, 14 & 22 cat €295, SG 11, 12, 14 cat £300. (4) (P) $150 $200
2145 1920 Compania Colombiana de Navegacion Aerea multicoloured publicity label w/o opt, showing clouds & small biplane at top, LL marginal with inscription "There's money in the Air - in a Curtiss" at left & fancy "Curtiss" at bottom. VF UN, tiny thins. Sc C7 cat $10,000, Yv 6 cat €12,500, SG 6 cat £15,000 for stamp with opt (P) $400 $700
2146 1920 Compania Colombiana de Navegacion Aerea multicoloured publicity label w/o opt, showing biplane with pilot & passenger taking off, LL marginal with inscription "The ship ten thousand flew - the Curtiss JN" in black at left & "Curtiss" in blue at bottom. VF fresh UN. Sc footnote. 2010 Scheller photo-cert (P) $200 $400
