Issued by Correos de México in 1979, this commemorative pair celebrates the 50th Anniversary of the Autonomy of the National University (UNAM).

• The 3.00 peso stamp depicts “La Conquista de la Energía” by José Chávez Morado, symbolizing humanity’s quest for knowledge and energy.

• The 0.80 peso stamp features “Alegoría de la Cultura Nacional” by David Alfaro Siqueiros, representing Mexico’s national culture through powerful muralist expression.

Both designs highlight the nation’s rich tradition of muralism and intellectual independence, reflecting UNAM’s vital role in Mexican society. These stamps are admired by collectors for their strong artistic themes and vibrant imagery.