Among the more than 300 works on view through February 25 at the Centre Pompidou for its exhibition Cubism is, above, “Masque krou,” Côte d’Ivoire, undated and uncredited. Painted wood, metal, and cork. 25.5 x 16.5 x 18.3 cm. Musée des beaux-arts de Lyon, Lyon. © Lyon MBA – Photo Alain Basset.