Cover to General Porlier prison in Madrid with censor mark, 1938
Reference: CT225
Cover to the prisoner José Manuel Álvarez Arenas, in Madrid's General Porlier prison. Madrid postmark of April 26, 1938, tax mark and censor "SED BREVES EN LAS CONTESTACIONES". Certificate Graus (nr. AT2/85-8, of Nov 28, 2011).