A coin hoard from the Levant?

I notice that Classical Numismatic Group, Inc. is selling a coin hoard ('Eastern Hacksilber') [CNG 97, lot 1 ]. It consists of 'Hoard of 32 Cut Silver Coins, Hacksilber, and Jewelry', and dates to the late 5th century BC. The hoard contains three fragmentary coins of Sidon.

The information about the lot informs us:

'Uncertain find spot, but the composition of the hoard is consistent with others found in the Levant'.

What is the previous documented collecting history of this hoard? Who was the previous proprietor?

Where in the 'Levant' was this hoard found? When was it found?

Can we be certain that all the pieces of the 'hoard' were found together? Are there other parts of the hoard that are not being offered here? Have parts been retained?

This hoard illustrates some of the intellectual consequences of dealing with numismatic material that has no documented find-spot.