In the 1880s, the Chilean government occupied the Araucania region and missionary schools became a concrete context in which transformation occurred. In 1896, missionaries belonging to the Bavarian Capuchin order took over this task. As part of this work, they left behind a photographic record of their actions in this region, and many of these photographs were published as postcards. This paper presents the results of socio-semiotic analysis of the postcards bearing photographs of Mapuche children which the Bavarian Capuchins published and circulated at the beginning of the 20th century.