Entitled “Puerto Rico Canta Al Mundo” (“Puerto Rico sings to the world”), this vintage serigraph poster is by Efrain Lopez Diaz, better known as "Lopito”, and is for a performance by the San Juan Children’s Choir. It features a stylized depiction of the Puerto Rican flag with photographs of children.
It is signed by the artist in the plate and also in pencil. Slight wear to the edges. (See photos.) From the estate of a New Jersey collector with an extensive collection of Puerto Rican serigraphs.