Probably from a column krater, as P 7249.
a) The central part of a nude male figure seen from behind, striding left, wearing an himation over his right shoulder and carrying in his left hand a knobbed ... 19-23 March 1936
Moore, M. B ... American School of Classical Studies at Athens ... This volume presents the inventoried red-figure and white-ground pottery found in the Agora Excavations between 1931 and 1967. Although many of these vases have already been published in various reports ... 1997