"Portable Olmec objects have attracted the attention of collectors for centuries. Small masks or celts of carved jadeite bearing the distinctive “baby
face” or jaguar-like features of the Olmec style have been known since the Spanish Conquest (e.g., a life-size jadeite mask, apparently taken to Italy in the 16th century and now in the collection of Dumbarton Oaks, and a miniature mask once belonging to the
Royal House of Bavaria and now in the Residenz Museum in Munich)."
