- Pen, Ferrobolic ink on verjured paper, 207 x 157 mm. Un exposed
Letter from Francisco de Goya to Martín Zapater (1746-1803), his childhood friend in Zaragoza, alluding to Goya's participation in the painting of the dome of the Pilar de Zaragoza, on the proposal of Francisco Bayeu, and assistance to Ramón Bayeu in his work for sickness.
