Date range of late 2nd-first half 3rd century follows chiefly Sazanov2017, while the earlier works by Zemer1978 and Majcherek1995, based on less precise and full evidence, proposed an early date range from the Early Roman period.
“Zemer Amphora 36.” In Kenchreai Archaeological Archive, edited by J.L. Rife and S. Heath. The American Excavations at Kenchreai, 2013-2025. <http://kenchreai.org/typology/p-zemer-36>