Fernanda Wittgens, from the Palazzo Reale, notifies Willem Sandberg, director of the Stedelijk Museum, of the success of the exhibition and informs him that Guernica will travel to São Paulo, among other issues.

Reference in the source Archive:

Courtesy Stadsarchief Amsterdam y Stedelijk Museum Amsterdam

A letter from Fernanda Wittgens to Willem Sandberg, dated 7 October 1953