Four triangular Belgian Congo airmail stamps from the 1935 issue featuring aircraft flying above the Congo landscape. The group includes 5-, 10-, 15-, and 20-centime denominations in blue, red, and green. No clear postal cancellations are visible. The stamps are not mounted or adhered to the album page and are temporarily fastened with specialty stamp tape designed not to damage their backs. The tape will be removed before shipping, and the stamps will arrive in the same condition shown in the photograph.