The East African Gazelles

The ecological focus of the high-value airmail (Poste Aérienne) issue is the formal registration of indigenous antelopes within the territory's environmental survey, categorized under the plural header "GAZELLES". This issue documents the biological distribution of fast-running herds, such as the Bohor reedbuck, navigating the interior grasslands and riverine marsh systems of the Horn of Africa. Historically, this 1950s release juxtaposes the territory's ancestral wildlife landscapes with its accelerating modern infrastructure—symbolized by a long-range commercial airplane navigating the airspace above—to project an integrated image of ecological preservation and logistical advancement within the global mail network.