Indicates that the National Exhibition of Concrete Art "which was displayed in December 1956 in Sao Paulo and February 1957 in Rio de Janeiro as the first exhibition of Concrete Poetry." Its catalog is held by the Sackner Archive. Cluver analyzes Haroldo DeCampos' poem "Nascemorer." He mentions that Vladimir Dias Pino and Ferreira Gullar broke away from the Noigandres group after its founding to create an ill-defined "Neo-Concretismo" movement. -- Source of annotation: Marvin or Ruth Sackner.