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The Tracing for the Sail Vault at the Murcia Cathedral Vestry: Surveying a 16th-Century Full-Scale Working Drawing

2012; Taylor & Francis; Volume: 7; Issue: 3 Linguagem: Inglês

10.1080/15583058.2011.640736

1558-3066

José Calvo López, Juan Carlos Molina-Gaitán, Pau Natividad Vivó, Miguel Ángel Alonso-Rodríguez, Enrique Rabasa Díaz, Ana López Mozo, Miguel Taín Guzmán, José Antonio Sánchez-Pravia,

Medieval Architecture and Archaeology

Full-scale tracings, drawn in plaster surfaces or engraved in stone walls and floors, were used frequently in Renaissance construction to control the execution of ashlar masonry. In many occasions, these tracings furnished the shape of the templates used in the dressing process, either in true size or orthogonal projection. A large example of these tracings appeared in 2009 in the vestry of Murcia Cathedral, when the sacristy drawers were disassembled to execute a conservation treatment against woodworm. At first sight, the tracing seemed to be related to the vault over the vestry, built in 1525 by Jacopo Torni l'Indaco, one of the first examples of ashlar sail vaults in Europe; a number of surveys confirmed that the tracing corresponds with the vault quite precisely. In this study, after an introductory section dealing with tracings and dressing techniques, the authors explain the measuring methods used in the surveys, describe the tracing, compare the tracing with the built vault, and discuss the relevance of the tracing, in order to advance knowledge of the evolution of European stonecutting.