The park of Ancient Agora.
Observations from the Tree Survey  

Mount Atlas Mastic trees can be found as specimen trees near the temple of Hephaestus and other locations in the park.

Reference in the works of Theophrastus:
"The wood of the terebinth is also very black and close-grained; at least in Syria they say that it is blacker than ebony, that in fact they use it for making their dagger handles; and by means of the lathechisel they also make of it 'Theriklean’ cups, so that no one could distinguish these from cups made of pottery; for this purpose they use, it is said, the heart-wood, but the wood has to be oiled, for then it becomes comelier and blacker...."                                                                                                                     Theophrastus, Enquiry into Plants, book 5 "Of the Timber of Various Trees and its Uses",                                                                                                              chapter 3, section 2. (transl. Arthur Holt)

Corresponding notes by Suzanne Amigues
"The pistachio from Syria is probably Pistacia atlantica Desf. much larger in all its parts than the Mediterranean P. terebinthus L.) (see note 121 in III, 15, 3). The latter nevertheless presents the characteristics attributed here to the pistachio wood without distinction of species. The «cups of Thericles» which were made from them must have had the deep black and pure lines of ceramic vases from the hands of the Corinthian potter Thericles, a contemporary of the comic poet Aristophanes (end of the 5th century BC)." (Amigues 2010).