I got this otherwise sweet neck from eBay. Polished it up the frets then looked at the nut. Hi E is a vestigial imprint, low E would impress the Grand Canyon, D is lower than A or G by a pretty good bit. Me thinks I know why the neck was for sale.
Got a slotted bone nut coming my way. I'm thinking of getting one of those Stew Mac saddle/nut sander that looks like a little slot car with a vise in the middle.