A Bronze Krater in the Levy-White Collection

I can remember how moved I was when I saw the "Vix krater" for the first time. It was displayed in a darkened room at the heart of an exhibition, "Die Hallstattkultur: Frühform europäischer Einheit", in Steyr, Austria (1980). Such complete archaic bronze kraters are few and far between (though the cast attachments from others have survived).

Winifred Lamb, in Greek and Roman Bronzes (1929), had a section on archaic "Bronze Vases" and noted:

The surviving bronze vases are few, but those of which the provenance is known still fewer. Fewest of all are the vases which can, like pottery, be associated with excavation (p. 133).

She also noted,

An even more magnificent crater ... was discovered, during the last months of the war [sc. 1918], in a cemetery north of Lake Ochrida (p. 135).

The find-spot was Trebenishte (in the present Republic of Macedonia, close to the present frontier with Albania).

Such archaic kraters are rare which is why there is so much interest in the one on loan to the Museum of Fine Arts in Houston. Its present proprietor is Shelby White. This appears to be the krater discussed by Conrad M. Stibbe in a review article, "The krater from Vix again" (in his Agalmata: Studien zur griechisch-archaischen Bronzekunst. BABesch. Suppl. Leiden: Peeters, 2006 [Google Books]). In his discussion of the unique nature of the volute-krater from Trebenishte (p. 318), he appends a footnote (p. 321 n. 57):

We have now a second bronze volute krater with the same pattern on its foot. See my forthcoming publication in the volume in memory of Leon Levy.

This newly surfaced krater appears to be important. So it would be helpful to have some answers to the following:

• Does the Shelby White krater have a reported find-spot?
• When was the Shelby White krater acquired? Who sold it?
  
• When did the Shelby White krater first appear?
• Has it passed through the hands of any other collectors?