Egypt/Fayoum
Late Hellenistic/Ptolemaic
Trench 1, Locus 18: Courtya...
later 4th century BCE - early 1st century CE
Hellenistic/Ptolemaic, Roman
At least forty-one other sites mostly concentrated in Upper Egypt and the Western Oases, have a corpus of PBW which reflects a wide distribution and some evidence for production within Egypt