Used horizontal strip of four of the Spain General Franco 50-céntimos definitive (ca. 1939–1948 issue), slate-blue/gray, off paper, with bold boxed machine cancels from Melilla — notably including a 'CORREO AÉREO / MELILLA' airmail cancel across the right pair, adding interest for Spanish North Africa postal history collectors; fresh color throughout, perforations intact at all gutters, light age toning on reverse, no major faults observed. Please review the scans for condition.