1980 Spain 3 PTA Postage Stamp - "Utilice Transportes Colectivos"

This is a horizontal rectangular postage stamp from Spain, issued in 1980 as part of a campaign to promote public transportation. The stamp features a central illustration of a modern (for the era) electric commuter train with overhead wires, rendered in reddish-brown monochrome tones. Below the train, stylized silhouettes of people represent the public, accompanied by the slogan 'UTILICE TRANSPORTES COLECTIVOS' (Use Public Transport). The denomination '3 PTA' is clearly visible in the upper right corner. In the lower left, 'correos ESPAÑA' identifies the postal service and country, along with the acronym 'F.N.M.T.' representing the Fábrica Nacional de Moneda y Timbre, the Spanish royal mint and printer. The year '1980' is printed subtly in the bottom right corner. The stamp is printed on white paper with typical comb perforations. This specific specimen is in 'used' condition, featuring a faint, partial black ink circular cancellation mark (postmark) across the bottom center and right side. There is some minor toning to the paper consistent with age, but the perforations appear largely intact without significant tearing or creasing, preserving the overall integrity of the design and its educational-social message from the late 20th century.