This stamp from the Republic of Congo highlights the medicinal plant Cinchona ledgeriana, known as the source of quinine, a vital treatment for malaria. Issued with the Red Cross emblem, it emphasizes the role of medicine and humanitarian aid in public health. Printed by Enschede, Holland, the design features a detailed botanical illustration alongside a stylized red cross. The 40c denomination made it a practical issue for postal use while also raising awareness of the Red Cross mission. A meaningful thematic piece for collectors of medical history, flora, and Red Cross issues.