This beautiful 1973 Belgian commemorative pair honors the nation's aviation heritage. The 8F stamp celebrates the 50th anniversary of SABENA (1923–1973), featuring a modern jetliner taking off with the Brussels Airport terminal in the background and an early biplane above, symbolizing fifty years of progress in Belgian air transport. The 10F stamp depicts the TIPS 1908 aircraft, one of Belgium’s earliest airplanes, designed by pioneers known as Les Vieilles Tiges de Belgique (The Old Stems of Belgium). Together, the stamps capture Belgium’s proud evolution from early flight to modern aviation excellence.