Broken below and at both sides. Very worn, apparently from foot traffic.
Back has two cuttings suggesting at least one reuse as a threshold.
Upper part of horse with rider prancing right, against falling ... 27 March 1972
Grossman, J. B ... The American School of Classical Studies at Athens ... The Athenian Agora: Results of Excavations Conducted by the American School of Classical Studies at Athens 35 978-0-87661-235-4 ... 2013