Nephthys with her sister Isis, Neith and Serket were the four goddesses protecting coffins and canopic jars. She is represented as a striding woman wearing her emblem overhead1. Common faience amulets of the goddess were placed on the chest of Late Period mummies1

Nephthys - Blue/green glaze
Nephthys - Blue/green glaze

Blue/green glaze
H 4,1, W 1.4, D 3.4 Undated
© 2020 Musée du Louvre/
Raphaël Chipault #AF 9510

Nephthys - Green glaze H 3.5
Nephthys - Green glaze H 3.5

Green glaze H 3.5
Dynasty 30 to Ptolemaic
Period The Cleveland Museum
of Art Bequest of James
Parmelee #1940.628

Nephthys - Blue glaze

Blue glaze
H 4.0, W 1.0, D 1.5
Ptolemaic Period
MET #26.7.886

Reference

1Andrews C. Amulets of Ancient Egypt 1994, p. 48