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 ... An incised line, drawn by compass, sets off the rim. ... Thus his whole body is shown in black against the red background of the vase. ... The master of the North Slope krater has departed from a realistic rendering of the battle scene in order to obtain a better picture; the painter of the Pharsalos vase has sacrificed the principles of composition for accuracy in depicting the combat.