left page: F. Mora and P. O'Higgins: Decoration for the First Congress of Latin American Oil Workers in Tampico, 1948; O'Higgins and Alberto Beltran, poster for the First Congress of Latin American Oil Workers.
right page: G. Monroy, poster for the First Congress of Latin American Oil Workers; F. Mora, Oil for Peace, poster; Luis Arenal, The Octopus, 1946.