Fabio Isman has a piece on the Medici and Symes pieces surfacing on the New York market ("Pezzi di Medici e Symes all’asta: fino a quando?", Artemagazine December 2013). This draws on the identifications made by Dr Christos Tsirogiannis. It also has the images of one of the objects in the Swiss Gallery.
The piece is a reminder that auction-houses need to undertake a more rigorous due diligence process to prevent these toxic antiquities from appearing at the sales.