 Egyptologists John D. Degreef, Nabil Swelim and Wolfgang Helck resisted the equation of Nebka with Sanakht in earlier research.They underline the heavily damaged nature of the Beit Khallaf seal fragment and hence that the alleged cartouche can be hardly identified with certainty.Instead, they propose that the cartouche could actually be the oval-shaped crest of a royal fortress with one or several boats in it, a city that may have already been mentioned under the name “Elder's boats” in sources dating to the Second Dynasty king Peribsen.