A: Harpocrates sitting to left on a lotus with knees drawn up; under the flower two stalks with lotus buds. Baseline indicating primeval mound? His right hand raised to his mouth, his left holds a flail. A long side-lock of youth is falling to his neck; six rays around the head. On the top of his head: the solar disk.
B: Inscribed in five lines: χαβρ|αχφνε|σχηρφι|χροφ|νυρ.
C: Belonging to the inscription on the reverse: ωφωχωβωχ → χαβραχ-logos.
A praxis known from a papyrus (PGM LXI 1-38) specifies that love charms had to be incised with the image of Horus on a lotus flower and the magical name Abraxas. Pieces with the Horus-scheme used as love charms: CBd-533, CBd-534.
Bibliography
Michel, BM on CBd-518
The British Museum Collection database on CBd-518