J. D. Beazley, Attic Red-Figure Vase-Painters, Oxford, 1963, p. 34, no. 17.
The Kalpis was introduced as a hydria shape by about 520 B.C. With a smaller neck than the traditional black-figure type of hydria, a continuous body profile and a rolled lip, it became the preferred shape of water jar of the red-figure vase painters. Euthymides was one of the 'Pioneer Group', along with Euphronios, Phintias and others; they were pioneers of the new red-figure technique of painting on vases, consummate artists who formed a coherent group and started a movement. This vase is by a painter of the Pioneer Group, active at the end of the 6th Century B.C.