A letter from Henri Marceau, associate director at the Philadelphia Museum of Art, to Sidney Janis, director of the Organising Committee of the exhibition Picasso's Guernica, for the Spanish Refugee Relief Campaign, turning down the exhibition over scheduling issues.
Reference in the source Archive:
Spanish Refugee Relief Association Record, 1935-1957, Part B: General Office Files Box 25: Picasso Tour
Related topics:
Henri Marceau's letter to Sidney Janis