A twist on the Rite-Rite "Threadline"

I don't remember where I came across this one, which drives me a little bit nuts since it's only been in the last month or so.  It's the one at the bottom, shown next to a Rite-Rite "Threadline" pencil.  In my mind, I've got to group this with the "Threadline" family, although mechanically it is nothing of the sort.   It more closely resembles the Lipic unbranded pencils that are such a common sight (more on those later), but when I look at the tip, the clip, the profile and the color  . . .

NOTE:  This article is now included in the print version of The Leadhead's Pencil Blog, available anywhere you buy books, or also from The Legendary Lead Company.

To order, here's the link:  Volume 1 at Legendary Lead Company