15c., fresh colour and good perforation tied by circular "SERVICIO POSTAL AERO BOGOTA SCADTA" to postal stationery card 2 c. red to Baranquilla with boxed arrival mark, fine and scarce (Image)

1920, 30c. black on rose, block of 14 (!) with framed "CORREOS NACIONALES MEDELLIN 26 AGO 1921" to reverse of large cover with additional franking to Barranquilla, few folds do not detract from the spectacular appearance of this massfranking (Image)