1906
Bushnell, David I., Jr. North American ethnographical material in Italian museums. American Anthropologist, N. S., vol. VIII, Lancaster, Pa.
On pp. 245-246 the author briefly describes the five mosaic pieces in Rome, and regarding one of the masks (our pl. VII, a) quotes from the inventory of the Guardaroba Medicea, 1553, showing the specimen to have been in the Medici collection.
Lehmann, Walter. Altmexikanische Mosaiken und die Geschenke König Motecuzomas und Cortés. Globus, Bd. XV, Nr. 20, pp. 318-322, Braunschweig, 29 Nov.
In this study Lehmann enumerates the twenty-three Mexican mosaic pieces in European museums and gives considerable documentary material from the early chroniclers.
1907
Kunz, George Frederick. Gems and precious stones of Mexico. Mexico.
On pp. 7-10, Dr. Kunz discusses turquois and describes some of the turquois mosaic specimens in European museums. On p. 52 he concludes that “it must be considered as possible, at least, that other localities containing turquois were once known, and may be hereafter re-discovered.”
Lehmann, Walter. Altmexikanische Mosaiken in Kgl. Museum für Völkerkunde zu Berlin. Congrès International des Américanistes, XVᵉ Session, tenue à Quebec en 1906, tome II, pp. 339-349, 4 fig., Quebec.
Describes and illustrates two pieces of Mexican mosaics in the Ethnographical Museum of Berlin, a double-jaguar figure, and a jaguar head. The first came from the estate of Alexander von Humboldt, the second was transferred to the Berlin Museum from the Ducal Museum of Braunschweig.