White picture post cards inscribed
“LIBRE DE FRANQUEO PARA EL INTERIOR DEL PAIS DURANTE LA EXPOSICION”
(Postage free for the interior of the country during the exposition)
and “EL CORREO EN LA EXPOSICION DEL 15 DEL SEPTIEMBRE PPRIMER CERTAMEN, 1904”
(Exposition mail, 15th of September, first competition, 1904).

Unused card with special Exposition cancel.
Fiestas de Minerva view on verso.

GUATEMALA CITY to FRANCE                                            1906, APRIL 25
Internal free franked picture post card with special 1904 Exposition 
cancel reused in 1906 with added 1902 5c x 3 Palacio de la Reforma.
Cuartel de Artelleria on verso.