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¡Hoy os traigo cinco magníficos sellos donde la tecnología de los faros es la protagonista! 🔥🕯️💡

Abro hilo con los detalles 👇
#faros #navegacion #lighthouses Image
Los sellos muestran la evolución de la iluminación en el faro Alderney, en el canal de la Mancha.
📸 Colin-Park Image
1725, el faro Alderney usó una hoguera de carbón
1779, lámpara de aceite
1790, lámpara de Argand o quinqué con un reflector fijo
1818, óptica giratoria
1952, bombilla eléctrica con una lente Fresnel Image
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