The shoulder decorated with figural scene within a panel depicting Achilles on the right chasing Troilos galloping on horseback to the left, Achilles shown wearing a crested helmet, holding his round shield with his left hand, the shield-device in the form of a small flower, the hero's right hand out-stretched in front, a band of dotted lotus bud chain above and below the scene, and pomegranate net on either side.
Edith Hafter (1911 - 2011) was from a great family of art collectors which included the famous collector Josef Mueller (1887 - 1977)
The Mannerists were a group of Attic red-figure painters known for their affected (emotive) subject matter. They were active from about 480 BC until near the end of the 5th century BC. Their main characteristic is that they maintained features of black-figure vase painting in the red-figure technique.
Their figures seem elongated and have small heads, the garment folds fall stiff and resemble stairs, and the images are framed with black-figure style ornamentations. The range of motifs is also influenced by previous periods. The figures gesticulate as if using a form of sign language—the hands often appear stiff and theatrical.
For further discussion see T. Mannack, The Late Mannerists in Athenian Vase-Painting, Oxford, 2001.
J.D. Beazley, Attic Red-Figure Vase-Painters, Oxford, 1963, p. 1660. Attributed by Beazley as Early Mannerist Beazley Archive no. 275287