The raised cobra or uraeus was at first a royal symbol placed on the fore-head of the king to destroy his enemies. The amulet did confer to the non-royal dead the protection usually provided to the king1. Such amulets are mainly in faience, but other materials were used1
References
1. Andrews C. Amulets of Ancient Egypt, 1994, pp. 75-76
2. Petrie W M F. Tell el Amarna, London, Methuen & Co., 1894, plate XVII, no. 321



