Abstract
This article provides new documentary and photographic sources for the study of painting in Alcalá de Henares, especially after the war that took place between 1936 and 1939. Much of the Alcalaíno pictorial heritage was transferred to the Prado Museum, where it would be inventoried and photographed; We make known the "return certificates" of these works to the Complutense city, including the signatures of a varied list of snapshots, today known as Arbaiza Photographic Archive.