Euphronios fragments at the Met

The announcement that pot fragments formerly owned by Dietrich von Bothmer have been returned to Italy raises an issue. What are the collecting histories for other Bothmer donations?

I am particularly interested in Euphronios at the moment and note that Bothmer donated the following fragments to the New York MMA.

1. 1977.192.3a-c. 3 fragments of a red-figured cup. Attributed to Onesimos and signed by Euphronios as potter.
2. 1983.524.2. Fragment of a neck-amphora. [Euphronios no. 24]
3. 1983.524.3a-b. 2 fragments of a cup potterd by Kachrylion and attributed to Euphronios. [Euphronios no. 39]
4. 1983.524.4. Fragment of a cup attributed to Euphronios. [Euphronios no. 40]
5. 1983.524.5. Fragment of a cup attributed to Euphronios.
6. 1985.228.8.a-o. 15 fragments of a red-figured neck-amphora. Join Louvre Cp 11187. [Euphronios no. 16]
7. 1988.233.1. Fragment of red-figured cup attributed to Euphronios.
8. 1989.382.1. 11 fragments of a red-figured cup. Helen abducted by Theseus. [Euphronios no. 38]
9. 1989.382.2. Fragment of a red-figured cup. Nessos and Deianeira. [Euphronios no. 52]

Where were these neck-amphorae and cups discovered? Who has handled them? Who were the proprietors before Bothmer? What do they join?

I also note that the fragment formerly owned by Ariel Herrmann and loaned to Princeton (L.1984.56 = Euphronios no. 25) now is New York MMA 2001.563 (Gift of Ariel Herrmann in memory of Lydia Mannara). This was attributed by J.R. Guy, along with a second fragment, Princeton L.1984.57 [Euphronios no. 26].