Lower Egypt. The first usage of the Red Crown was in iconography as the symbol for Lower Egypt with the Nile Delta, horizontal letter 'n', Gardiner no. 35, N35 Later it came to be used in the Egyptian language as an alphabetic uniliteral, vertical form for letter "n" as a phoneme or preposition. It became functional in running hieroglyphic texts, where either the horizontal or vertical form preposition satisfied space requirements. Both the vertical and horizontal forms are prepositional equivalents, with the horizontal letter n, the N-water ripple (n hieroglyph) being more common, as well as more common to form parts of Egyptian language words requiring the phoneme 'n'. One old use of the red crown hieroglyph is to make the word: 'in'!, (formerly an-(a-with dot)-(the "vertical feather" hieroglyph a, plus the red crown). Egyptian "in" is used at the beginning of a text and translates as: Behold!, or Lo!, and is an emphatic. The Red Crown is also used as a determinative, most notably in the word for deshret. It is also used in other words or names of gods. Use in the Rosetta Stone In the 198 BC Rosetta Stone, the 'Red Crown' as hieroglyph has the usage mostly of the vertical form of the preposition "n". In running text, word endings are not always at the end of hieroglyph blocks; when they are at the end, a simple transition to start the next block is a vertical separator, in this case the preposition, vertical n, (thus a space saver). Since the start of the next hieroglyphic block could also be started with a horizontal "n" at the bottom of the previous block, it should be thought that the vertical "n" is also chosen for a visual effect; in other words, it visually spreads out the running text of words, instead of piling horizontal prepositions in a more tight text. Visually it is also a hieroglyph that takes up more 'space'-(versus a straight-line type for the horizontal water ripple); so it may have a dual purpose of a less compact text, and a better segue-transition to the next words. The Red Crown hieroglyph is used 35 times in the Rosetta Stone; only 4 times is it used as a non-preposition. It averages once per line usage in the 36 line Decree of Memphis (Ptolemy V)-(Rosetta Stone). See also Atef – Hedjet Crown with feathers identified with Osiris Khepresh