The Steinhardt oinochoe

The seizure last week of at least 9 antiquities from the collection of Michael Steinhardt raises questions about other items in his collection. I am particularly concerned about an unpublished oinochoe (shape) attributed to the Berlin painter by Robert Guy (although not apparently in the Beazley Archive). It shows a youth with a Maltese dog.

Those who follow these matters will know that pots attributed to the Berlin painter have featured in the returns to Italy, among them an amphora once in New York's Metropolitan Museum of Art (with added fragments from a private collection).

Steinhardt's apparent links with Robin Symes now raise questions about this oinochoe. How was it acquired? When was the attribution made?