A letter from Íñigo Cavero to Blanche de Philip P. Weisberg (Blanche Mahler)

Íñigo Cavero, minister of Culture, asks Blanche Mahler, former director of the Programmes Office of the Spanish Refugee Relief Campaign, for the documents she possesses on the journey Guernica undertook to New York in 1939, particularly the catalogue from the Valentine Gallery, signed by Juan Negrín and Julio Álvarez del Vayo.