Chasing Aphrodite is reporting on a Paestan tomb fragment that was seized at Newark Liberty airport in April 2011 ("Steinhardt Redux: Feds Seize Fresco Looted from Italian World Heritage Site, Destined for New York Billionaire"). It appears that the fragment came with "Macedonia" as its origin. The piece claimed it had surfaced in 1959. The intended recipient was Michael Steinhardt.
If the collecting history was fabricated, it raises much wider questions about those who supply Steinhardt with antiquities.