Catalogue of the exhibition that shows a selection of engravings from the album of the 'Máscara Real', commemorating the festival held by the Barcelona guilds and main institutions on the occasion of the proclamation of Charles III as king, and the entrance of the new monarch and the royal family to Barcelona in 1759. The plates, made by the engravers A. J. Defehrt and Pasqual Pere Moles after Francesc Tramulles' drawings, reproduce the tableaux formed by mythological chariots and carnivalesque groups that took part in the cavalcade.