Georg Möller in the context of "N-water ripple (n hieroglyph)"

The total number of distinct Egyptian hieroglyphs increased over time from several hundred in the Middle Kingdom to several thousand during the Ptolemaic Kingdom.

In 1928/1929 Alan Gardiner published an overview of hieroglyphs, Gardiner's sign list, the basic modern standard. It describes 763 signs in 26 categories (A–Z, roughly). Georg Möller compiled more extensive lists, organized by historical epoch (published posthumously in 1927 and 1936).