Research on American Sign Language (ASL) phonetics and phonology has shown that signs are made up of distinctive units (parameters) and that these units can exhibit variation in their concrete manifestation. Little is known about Brazilian Sign Language (Libras) distinctive units and their variation. This study represents a first step toward a better understanding of variation in Libras signs, drawing on the analysis of 60 signs as produced by 12 deaf subjects. The analysis of these productions, elicited through images combined with glosses in Portuguese, not only confirmed the occurrence of variation in the handshape, location, movement, orientation, non-manuals and number of hands across subjects, as observed in spontaneous signing, but also revealed variation in other articulatory aspects such as contact. 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Faculdade de Filosofia, Letras e Ciências Humanas, Universidade de São Paulo, São Paulo, 2006Xavier, A.N., Variação fonológica na libras: um estudo da alternância no número de articuladores manuais envolvidos na produção dos sinais (2011), 5, pp. 119-145. , In: XVI SETA - Seminários de Teses em Andamento, 2011, Campinas. Anais do SETA (UNICAMP)Xavier, A.N., Doubling of the number of hands as a resource for the expression of meaning intensification in Brazilian Sign Language (Libras) (2013) Journal of Speech Sciences, 1, pp. 169-181Xavier, A.N., Uma ou duas? Eis a questão! Um estudo do parâmetro número de mãos na produção de sinais da língua brasileira de sinais (libras) (2014), 158 f. Tese (Doutorado em Linguística). 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