The Bulas Group specialized in miniature versions of Panathenaic prize amphorae. The shape and the representation of Athena follow the models quite closely. The seated athlete holding what might be a fillet is a narrative vignette that would not have appeared on a prize vase.
Richter, Gisela M. A. and Marjorie J. Milne. 1935. Shapes and Names of Athenian Vases. pp. 3-4, fig. 27, New York: Plantin Press.
Beazley, John D. 1978. Attic Black-Figure Vase-Painters. p. 661, no. 17, New York: Hacker Art Books.