Atef

romanized: ꜣtf) is the specific feathered white crown of the ancient Egyptian deity Osiris. It combines the Hedjet, the white crown of Upper Egypt, with curly ostrich feathers on each side of the crown for the Osiris cult. The feathers are identified as ostrich from their curl or curve at the upper ends, with a slight flare toward the base. They are the same feather as (singly) worn by Maat. They may be compared with the falcon tail feathers in two-feather crowns such as those of Amun

Predynastic Period and worn as a symbol for pharaonic