S335 – Spain 1930 – Pro Unión Iberoamericana — Correo Aéreo. Alberto Santos-Dumont — first powered flight, 1906; 5 céntimos, bluish black. Edifil 583. Issued 10 October 1930.
Production: Photogravure (huecograbado). Line perforation (nominally 14; individual gauge not supplied).
Condition: Mint Never Hinged (MNH). Good centring and generally complete perforations, with minor upper-edge irregularities. Original gum, never hinged as confirmed by collector. No obvious major paper faults.
Collector’s note: Commemorates Brazilian aviation pioneer Alberto Santos-Dumont and his public powered flights of 1906.
Collection Grade: 4.5/5; Investment Grade: 1.5/5; Decision: KEEP.












