A pottery kiln at the lowest level on the eastern side of the hill. For photographs of a potter’s shop(?) unearthed a short distance to the north east of this kiln see 533-536 of the pottery publication for the site.
"Many of the utilitarian wares are made from nile clay, including two dozen pigeon pots that were discovered not far from a large circular structure thought to be a kiln. this structure, made entirely of burnt brick, lacks the adobe and mud plaster casing common for ovens found in homes. Both the construction, which would allow for a more intense heat, and the larger size suggest commercial use. such a kiln would have made possible the firing of a wide variety of terracotta objects, including lamps and small figurines."
Karanis, An Egyptian Town in Roman Times: Discoveries of the University of Michigan Expedition to Egypt (1924–1935), edited by elaine K. gazda (2nd ed., with a new preface and updated bibliography by t. g. Wilfong).