If it is that long before Narmer (and nearly 1000 years before the pyramids at Giza), then it is before the 0th dynasty so-called King Scorpio, IMHO.
Glassmakers key to Egypt’s status
BBC | Friday, 17 June, 2005 | staff
Posted on 06/24/2005 12:31:27 PM EDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1429834/posts