The Medici Archive and a London sale

My Cambridge colleague Dr Christos Tsirogiannis has spotted that a Greek core-formed glass oinochoe being offered at Christie's London next week (April 2, 2014, lot 173) seems to appear in the Medici Dossier. The estimated price is £4000-£6000. It had surfaced through Sotheby's in London (Sotheby's, London, 11 July 1988, lot 198). The oinochoe also appears to be owned or co-owned by Christie's: "From time to time, Christie's may offer a lot which it owns in whole or in part. This is such a lot".

As Christie's have an interest in this piece, can we assume that they will be contacting the Italian authorities?