1863, 50 c. red (colour of 20 c.) instead of 50 c. green, error of colour, good to wide margins except at right slightly touched, unused hinged with good part original gum; an extremly rare stamp especially in unused condition. Certificates Royal Philatelic Society, London (1943), Pascal Scheller (2015) (Yvert 22 a, 45,000 €). (Tax Method: Margin System) (Image)

1935, 3rd national Olympic Games in Barranquilla complete set to 10p. 'Condor', mint hinged with minor gum imperfections as usual, very scarce set, Mi. € 1.500,-- (Tax Method: Margin System) (Image)