A classic Official (Officiel) issue from the République du Tchad, featuring the tricolour national flag in blue, yellow, and red, boldly superimposed over a simplified outline map of the country. The clean grey frame and typography highlight its administrative purpose, with the 2F denomination printed at lower right. A desirable piece for collectors of African postal administrations, early independent-era Chadian issues, and official government service stamps. Crisp design, strong colours, and emblematic national symbolism make this a standout mid-20th-century official definitive.