To me it looks like a crude basic drawing of Egyptian symbol / hieroglyph. The circle horns and candle stick...looking thing. I'm prolly wrong but I have seen it. Well...err ... seen what I'm trying to explain.
EDIT
Done a quick google search (link below). See the dude on the far right...look at his hat. I have seen similar and better versions but can't remember where.....sorry
http://www.holtzendorff.com/vacation...-the-kings.jpg
http://www.stuffemal.com/store/image...te339_prod.jpg