This Paraguayan airmail stamp, issued in 1929, features a bold blue design with a central “10 Centavos” denomination. Inscribed with “República del Paraguay” and “U.P.U.” at the top, it highlights the nation’s participation in the Universal Postal Union. The side motifs depict national symbols, while the bottom inscription “Correo Aéreo” marks it as part of Paraguay’s early airmail issues. A fine piece from the golden era of aviation-themed philately, it is an attractive addition for collectors of classic South American stamps.