The numbers on the lense are not a Ford number but a required number on the lenses that was from SAE. You actually see this on all the different exterior lenses. There is different codes for different lenses.
As far as the logos, both are originals. The small and the large. I looked thru what I have here and a good mix of both. I also think the small logo was earlier since it seems the 70 lenses then used a large logo. The current reproduction, which is excellent, uses the large logo.
The only noticeable difference between the two style lenses is there is what I call a small weep hole or indentation in the bottom middle. You can see that here:
Small logo:
Large logo: