Missionary sister teaching catechism, Africa, ca.1920-1940between 1920 and 1940"Missions D'Afrique - Catéchisme aux Vieilles" An indigenous missionary sister is teaching the catechism to a small group of children and mothers on the ground in front of a mud building. On the back of the postcard is printed "Soeurs Missionnaires de N.-D. d'Afrique - Saint-Charles, par Birmandreis (Alger)still image