A: Ouroboros with head at top to left, enclosing a uterus-symbol in the shape of a cupping vessel, ligaments and Fallopian tubes visible. Below the uterus, a seven-bitted key, above, the lion-headed Chnoubis, head to left and surrounded with seven rays. To the left and right of the uterus, protecting it, winged Isis and Nephthys, wearing double feather crowns.
B: Inscription in two lines: ορωριορθ → variant of ορωριουθ.
Bibliography
Philipp, Mira et Magica on CBd-226
Michel, DMG, 54.2.b_4.
Images
Cast of CBd-226 obverse and reverse in the Gem Impressions Collection of Cornell University Library