Corazon De Piedra   Creator:   Leal, Osvaldo ( performer ) Iris Class y su trio ( Performer ) Ore Lara, Alberto ( Composer ) Publisher.Display:   America ( Puerto Rico ) Format:   1 sound disc : 78 rpm ; 10 in. Source Institution:   Florida International University Donor:   Juan Crespo Corazon De Piedra	Yo Valgo Mas   Creator:   Leal, Osvaldo ( performer ) De Castillo, A. Ruiz ( Composer ) Iris Class y su trio ( Performer ) Publisher.Display:   America ( Puerto Rico ) Format:   1 sound disc : 78 rpm ; 10 in. Source Institution:   Florida International University Donor:   Juan Crespo Yo Valgo Mas