The ancient Egyptian Mast hieroglyph is one of the oldest language hieroglyphs from Ancient Egypt. It is used on a famous label of Pharaoh Den of the First dynasty, but forms part of the location hieroglyph: Emblem of the East.
<div>Nectanebo II's obelisk uses the Mast hieroglyph when describing the construction of his obelisk; in a S-Egyptian emphatic word construct he adds a vertical S, the folded cloth, Gardiner no. S29, <hiero>S29</hiero>, at the beginning of the word "to erect". (see here, high res: http://upload.wikimedia.org/wikipedia/commons/0/03/Nectanebo_II_obelisk.jpg, low res: http://commons.wikimedia.org/wiki/File:Nectanebo_II_obelisk.jpg)</div>
The Ship's Mast hieroglyph is used as a triliteral phonetic hieroglyphic to represent the sound sequence ê¥ḥêÂÂ¥, which means "to stand erect", or "to stand vertical"; its use is extensive throughout the language history, and hieroglyphic tomb reliefs and story-telling of Ancient Egypt. It is possibly a forerunner hieroglyph kh3 , the sun rising upon the horizon.
In the 198 BC Rosetta Stone, the ship's mast hieroglyph has the unique usage in the final line of the Ptolemy V decree: the mast is used twice-(adjective, verb):