Differences in Formula S Emblems

With all my reading on these, i believe this is how they are. That is why i had a asked the orientation of the pins on the badge i purchased.
I'm going to look at the fender on this car because the drive side is the only on to have mounting holes, as the passenger side has been replaced because of a collision. The odd part of the mounting holes in the drivers side is a combination of horizontal and vertical holes making a diamond shape. A question that has hit my pea brain is there any way a owner added set or a late production 65 that someone had needed to put the 66+ badges on? The car is less a fender tag so i can't tell date. But i believe it has to be added holes later.