In 1994 a fragment of the bottom of grey clay cup with the stamp АП in a circle was found on the surface of Semibratneye site (ancient Labrys). The fragment is interpreted as a part of a ritual vase which was used in the temple for religious ceremonies or offerings. The monogram АП indicates that the deity for whose cult the vase was intended was Apollo. The find could be connected with Labrys' sanctuary of Apollo. The existence of such sanctuary can be proved by the base of Apollo's statue with the well-known votive inscription of Bosporan king Leucon I.