The early 12 inch, dual-lens license plate light made by Carello is no longer available from vendors. New reproductions are available from Ferrari dealers and others for roughly $700.
They very rarely are seen on eBay USA or elsewhere.
I just found this one currently listed on eBay.Italy. It looks to be intact, still has the proper attachment screws and both lenses are in place. It obviously will need some TLC and repainting.
Cost is roughly $390. Listing does not show a shipping cost to USA, but directs buyers to contact the seller for a shipping quote.
Sent from me using a magic, handheld electronic gizmo.