This striking 50 Francs stamp from the Belgian Congo, issued in 1923, depicts a finely engraved profile of a Congolese woman, her hair neatly tied back in a bun. Printed by Waterlow & Sons Ltd., London, the design reflects the colonial-era definitive series featuring portraits of indigenous people. Executed in deep blue with ornate framing, stars, and palm motifs, the issue is a classic example of high-value Belgian Congo definitives. With its large denomination, it was primarily used for heavy parcels and fiscal purposes, making postally used copies relatively scarce and sought-after by collectors.