At some point in the 1780s, during his Philosophical Journey through Amazonia, Alexandre Rodrigues Ferreira spent some time in Monte Alegre and Santarém, two Indian towns on the lower Amazon noted for their ceramics production. His account of the ceramic bowls (cuias) made by the Indian women remains especially interesting for its detailed description of production techniques and volume. These villages produced five to six thousand cuias annually, earning 100 to 120 réis for each, "depending on the size, the color, the quality, or if it is smooth or in sections". Europeans purchased most of the production: "the Indian women who know that the whites will buy them, make sure to perfect them". But Ferreira seemed particularly interested in one important detail: the Indian women reserved part of their production for their own use, with not only material but also symbolic implications: The cuias are the Indians' plates, cups, and all of their tableware. Each of them reserves one for the Principal [headman] from which to drink water or wine when he visits ... The bowl is distinguished by a shell ornament, attached by a ball of wax covered with beads, and a muiraquitã [a sacred green stone in the form of an animal] on top, which serves as a handle for the Principal.