Rare double aegis1 combine two heads of a god or goddess but also the heads of two deities of often a divine couple. Such amulets were either pendants (including tops of menats, see also dyads) or ring bezels and are of the Ramesside Period onwards1

Blue glazed aegis of a cat/lioness-headed goddess (Bastet?) and of Mut flat back

Blue glazed aegis of a cat/lioness-headed goddess (Bastet?) and of Mut flat back H 2. 2, W 1.7, T 0.6 New Kingdom World Museum Liverpool #4.11.86.6

Blue glazed ring with a double crowned Horus falcon aegis over a lotus flower

Blue glazed ring with a double crowned Horus falcon aegis over a lotus flower H 3.7, W 3.0, Ø 2.7 New Kingdom Dynasty 19 MET #44.4.61 Unscaled Picture

Reference

1None, Unpublished amulets