Fig. 4From: Saturnino Herrán’s portable murals: symbolism, material agency and conservationRepresentative FORS spectra from a bluish; b reddish; c yellowish; d orange; e green; f white zones; general IR g plaster and h binder associated features of “Alegoría de la construcción” (AC) and “Alegoría del trabajo” (AT) paintingsBack to article page