A: Ouroboros with head at top to left, encircling a uterus-symbol with a seven-bitted key. Above the uterus, a group of three deities, from left to right: Anubis as a mummy in profile to right; lion-headed Chnoubis, in profile to left, head surrounded with five rays; Isis-Tyche in a long robe in profile to left, right hand lowered beside the body, left hand holding a cornucopia. Head crowned with the double feather crown. Inscription outside the Ouroboros: σοροορμερφεργαρμαρβαρφριουριγξ → σοροορ-logos.
Bibliography
Zwierlein-Diehl, Köln on CBd-232