Intellectual consequences of the Attic red-figured lekythos

Attic red-figured lekythos
Source: New York County District Attorney

The Attic red-figured lekythos that has been seized from a Manhattan gallery is attributed to the group of Palermo 16. Find-spots (and the Beazley Archive now defines this information as "provenance") for such lekythoi include (and this may include "said to be" information):

• Nola: 2
• Tarquinia: 1
• Camarina, Sicily: 1
• Gela, Sicily: 5
• Selinus, Sicily: 3

11 further lekythoi do not have a stated findspot. It seems quite possible that the New York lekythos was found at a site on Sicily but we just do not know.

And note the loss of information: 11 out of 23 lekythoi do not have a secure archaeological find-spot. And how many of the 12 with some sort of reported find-spot come from a scientific excavation that has provided contextual information?