Persephone and Hades. Tondo of an Attic red-figured kylix, ca. 440-430 BC. Said to be from Vulci.  

British Museum. 

Source: Wikipedia

A tondo is a circular painting. A kylix is an ancient Greek cup with a shallow bowl and a tall stem.

The image is ringed with the lines of the eternity stone, a rectangular interconnecting spiral.

Inside the ring, HAdes and Persephone sit on a lounge. 

Persephone sits facing Hades, her hands open to accept the plate he is handing her.

Hades faces her, reclining on a pillow, his teet draped over Persephone's waist.