This fascinating airmail series from the République Togolaise (Togo) celebrates the evolution of the bicycle through history. Issued in 1974 under the title “Bicyclette Rétrospective”, each stamp illustrates a distinct era of cycling innovation—from the 1816 Draisine (early walking machine) to the elegant 1884 high-wheeler, the compact 1896 Bantam, and the 1897 military folding bicycle. Richly detailed and colorfully engraved, these stamps not only showcase technological progress but also reflect the social and cultural transformation that bicycles brought to the modern world. A prized thematic issue for collectors interested in transport or invention history.