For the most part, contains the correspondence sent to the Prioress of the monastery of Dominicans of Santa Rosa of Santiago, between the years 1766 and 1906; from bishops and archbishops, other monasteries of the city, chaplains, syndic and individuals. Within the themes that address the letters are: census, property, health and disease, repairs in building, books and forms.
Modern cardboard folder of green colour and medium size (35 x 23 x 0.3 cm); in front, an inscription on white adhesive paper entitled "Folder A-Letters to M. Prioress and community". It has sheets with numbering (post to the original, i.e.: "A-1"), legible.