Broneer, O ... American School of Classical Studies at Athens ... The calyx-krater of Exekias, first published in 1937,1 was discovered at the bottom of a well in the American School excavations on the North slope of the Acropolis in Athens. The circumstances of discovery ... 1956 ... His influence can be traced on a large number of vases, which probably did not all come from the same workshop. Some of his followers came very close to the master's own style.