The artists who showed their work at the Exposición Colectiva de Grabados Puertorriqueños: Pequeña Retrospectiva, held from September 6 to 30, 1963, at the Galería Colibrí were: José R. Alicea, Myrna Báez, John Balossi, Isabel Bernal, Luis G. Cajiga, John Dixon, José Manuel Figueroa, Domingo García, A.E. Gumbs, Luis Hernández Cruz, Manuel Hernández Acevedo, Lorenzo Homar, José M. Iranzo, Epifanio Irizarry, Rafael López del Campo, Antonio Maldonado, Carlos Marichal, Augusto Marín, Antonio Martorell, Carlos Osorio, Mela Pons de Alegría, Richard Pritts, Bonnie Reissman, Carlos Raquel Rivera, Rafael Rivera Rosa, José Rosa, Luis Santos, José Antonio Torres Martinó, and Rafael Tufiño. The exhibition included 100 prints. Homar himself designed the logo for the Galería Colibrí.The galleries that promoted graphic work by artists from Puerto Rico that opened in San Juan in the 1960s included Galería Isla (opened in 1963), Galería Sol (opened in 1964) and Galería Santiago (opened in 1965). Of them, the Galería Colibrí (opened in 1963) under the direction of Luigi Marrozzini (1933–1997) was particularly outstanding. It was sponsored by artists and by the Instituto de Cultura Puertorriqueña (ICP). In its first years, it focused solely on the exhibition and sale of graphic art from the island.