This rock drawing dates to Dynasty 0, before 3150 BC. It was discovered during Hans Winkler's 1936-1938 expeditions at the site of Wadi el-Qash, in the Eastern Desert of Egypt. The inscription has King Narmer's name within a serekh (a rectangular enclosure with the Horus falcon on top, representing a royal name). It is one of the earliest examples of writing in ancient Egypt.
This rock drawing was published in "Rock-drawings of Souther Upper Egypt, Volume 1: Sir Robert Mond Desert Expedition, Season 1936-1937, Preliminary Report," Archaeological Survey of Egypt 26, London: Egyptian Exploration Society.