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Engada unha explicación dunha liña do representa este ficheiro
Voice of Ferdinand von Zeppelin, German general and inventor (1838–1917)
Este ficheiro contén información adicional, probablemente engadida pola cámara dixital ou polo escáner usado para crear ou dixitalizar a imaxe. Se o ficheiro orixinal foi modificado, poida que algúns detalles non se reflictan no ficheiro modificado.