Alfred H. Barr Jr., director of the Collections Department at the Museum of Modern Art de Nueva York, thanks Daniel-Henry Kahnweiler for the letters received concerning the Pablo Picasso exhibition at the Second São Paulo Biennial, and expresses his agreement to loan the works, including Guernica, although he does warn of the risks of dismounting and transporting the painting.

Reference in the source Archive:
02BSP_00026_DOCUM_p01, 02BSP_00026_DOCUM_p02

Courtesy  Arquivo Histórico Wanda Svevo/Fundação Bienal de São Paulo

Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 15 June 1953