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Black-figured Mastos cup with combat scene Greek 530 BCE
"This shape of drinking-cup is called a "mastos" and resembles a woman's breast. On the front, a soldier whose nudity signifies heroic status advances against two warriors dressed in short tunics; two heralds watch from either side. On the back, a nude warrior confronts a clothed one in a similar scene. Beneath the horizontal handle stands a siren, a mythical creature with a woman's head and a bird's body, whose powers included knowledge of the outcome of battles." - Walters Art Museum
Walters Art Museum, Baltimore, Maryland USA