Vessels, 4-6th century BC. The Metropolitan Museum collection.
Typology of pots. Mid-late 19th century. Native American, Acoma. Smithsonian collections.
Peruvian Spindle collection. Morris De Camp Crawford. Anthropological papers of the American Museum of Natural History, Volume 12.
Gold coins featuring Sforza dukes of Milan. British Museum collection.
Graded standardized weights. Dolomite. Indus Valley Culture (Pakistan) about 2400–1750 B.C. Collection of the Museum of Fine Arts, Boston.