More SureFire E2e-BK Questions

I've been looking into the Surefire E2e-BK (Type III Hard Anodized Matte Black) flashlights, and I'm thinking of starting a collection.

How may versions of the E2e-BK have been produced to date?

As far as I can tell, there is the E2e-BK with the 3 sides round, and the E2e-BK with the 2 sides flat -- are there any other versions out there?

Also, do all the E2e-BK lights come with the "flat" bezel design, or are there some with the slightly "scalloped" bezel?

Lastly, what E2e-BK version had the smallest production numbers?

Thanks.

... any E2e HA-BK collectors out there ? ...

Thanks.

I'd one black E2e long time ago, but as far as I remember my one is not HAIII, the body finish just like a black 6P.

I have two E2es that are black hard anodized. The box says E2E-BK
There is nothing on the box to indicate that they are hard anodized. These have a press on/twist on switch. These have three flat sides and a flat bezel.