S336 – Spain 1930 – Pro Unión Iberoamericana — Correo Aéreo – Teodoro Fels — first crossing of the Río de la Plata, 1912 – 10 céntimos – Edifil 584 – MNH

S336 – Spain 1930 – Pro Unión Iberoamericana — Correo Aéreo. Teodoro Fels — first crossing of the Río de la Plata, 1912; 10 céntimos, bronze green. Edifil 584. Issued 10 October 1930.

Production: Photogravure (huecograbado). Line perforation (nominally 14; individual gauge not supplied).

Condition: Mint Never Hinged (MNH). Collector reports never-hinged gum, but substantial transferred print or adhering printed material appears on the upper reverse. Underlying gum requires physical examination. Generally complete perforations.

Collector’s note: Records the pioneering 1912 flight by Teodoro Fels across the Río de la Plata. Retained pending examination of unusual material on reverse.

Collection Grade: 2.5/5; Investment Grade: 1/5; Decision: KEEP / UPGRADE.