Bo Wennberg, head of the Modern Art Department at the Nationalmuseum, Stockholm, writes to Pablo Picasso to notify him that the exhibition Guernica, avec 60 études has just opened at the museum.

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Photo © RMN - Grans Palais (Musée Picasso de Paris) / image RMN-GP

A letter from Bo Wennberg and K. G. Hulten to Pablo Picasso