Painting depicting the pulpit and altar of the Mission La Purisima Concepcion, ca.1900

Photograph of a painting depicting the pulpit and altar of the Mission La Purisima Concepcion, ca.1900. An arched doorway is partially visible to the left, while some sort of box is pictured affixed to the wall at center. What appears to be draped cloth is hanging away from a balustrade. Handwriting along the bottom of the image reads "Storehouse for Grains" and "Facing Door of Baptistry"