This 50 pesetas Spanish stamp, issued in 1988 by Correos España, features an abstract, modernist design by A. de Urdaneta symbolizing freedom of expression and communication. The red angular lines form a stylized human face—an artistic representation of the human right to speak and be heard—while the blue motif on the left suggests flowing lines of dialogue or written communication, embodying the postal service’s role in free information exchange. Printed by the F.N.M.T. (Fábrica Nacional de Moneda y Timbre), the design reflects the post-Franco era’s renewed democratic values and Spain’s commitment to artistic modernity in philately.