The sedge and bee emblem was a powerful symbol in Pharaonic Egypt. The two signs were combined from the First Dynasty and used to represent the prenomen of the pharaoh and thus denote the unification of rule over Upper and Lower Egypt. The sedge plant referred to Upper Egypt and the bee was associated with Lower Egypt. The prenomen was the first of the five royal titles to appear surrounded by a cartouche.
To find out more about Ancient Egyptian amulets please see our relevant blog post: Egyptian Amulets and their Meanings.