Peru and Canada are signatories to the UNESCO Convention, signed in 1970, which promotes the protection of cultural property. The pieces are from the pre-Hispanic period, between 1200 and 1470.
The items have been donated to the Canadian Embassy in Lima, Peru, and will be returned to their rightful owners after they are returned to the U.S. They were donated by a Canadian company called Waddington's, which is based in Toronto. The company also donated a piece of art from the time of the Spanish conquistadors, which was donated by the Spanish.