Hi John,
I've seen quite a few of these headlights and I believe yours have the correct look for AN headlights. I also think that the front picture of the AN headlight posted in the technical manual is incorrect.
The construction of the AN headlight is very similar to that of the AC headlight---while the AJ is quite different. The main difference between the AC and AN, as pointed out in the technical manual, is that the middle unit has no fog light. In addition to this, in any AN headlight I've seen, that middle unit has an amber face on its reflector; and this is what gives the headlight the look of a larger amber section, when seen from the front.
I believe that that AN headlight in the manual did have that amber face, because you can just see the telltale amber swage in the bottom picture (see arrow in picture below). Maybe the front picture in the manual got confused with an AC picture---it's not possible to see in that picture a clear AN or AC marking. It's also possible that in the headlight in the manual, someone broke off the amber face in order to make it look like an AC.
If you're interested in what the internals look like, I have an AN headlight in pieces that I could send you pictures of. You'd have to send me your email address.