From 1987 to 1998, WMF worked to conserve the Portada de la Majestad. The project included extensive historical research, analysis of techniques and materials used for the various layers of polychromy, a comprehensive conservation assessment of the portal itself, and an exchange program between young conservators from both Spain and the United States. (...)
From 1987 to 1998, WMF worked to conserve the Portada de la Majestad. The project included extensive historical research, analysis of techniques and materials used for the various layers of polychromy, a comprehensive conservation assessment of the portal itself, and an exchange program between young conservators from both Spain and the United States. This research provided a fuller understanding of the composition of materials utilized over time, the condition of the polychrome layers, and allowed review of the best conservation options to incorporate the knowledge gained from the studies.
The original medieval polychromy was found to be in excellent condition over 80 percent of the sculpted surface. Where this original layer was damaged or destroyed, conservators preserved it by using a technique, style, and color very similar to the original. The program at Toro was a model of collaboration between experts and conservation trainees from Spain and other countries.