returned the upper part of the Weary Herakles to Turkey. Indeed it appeared in the Glories of the Past exhibition.
Susan Wood has now placed the sculpture back in its original context with her discussion, "Klaudios Peison Anetheken: a gift of sculpture at the South Baths of Perge", American Journal of Archaeology 121, 3 (2017) 439-66. The Herakles is illustrated (p. 444, fig. 3; noting formerly Museum of Fine Arts, Boston, inv. no. 1981.783.VR), and listed in the appendix (pp. 460-61, cat. no. 4). Wood notes: 'the Weary Herakles ... must have been illegally excavated and exported from Turkey before 1981, when the Museum of Fine Arts, Boston, purchased the fragment' (p. 444).
The full collecting history can be found here.