Dave is correct from what I have seen with NOS 440-6 nameplates.
The original issue 2 pin ones came with the plastic sleeve for the steel hood.
Regarding the two styles other than the pin length/size and number of pins, the original 440-6 shaker nameplates carried the cast number 3462273
and the two pin steel hood ones are 2998761.
As for what is out there on the market today, I have not seen them in person to see cast numbers.
The brushed finish on the CUDA part is an indication of original run verses the chrome finish on some out there today.
And yes, the various nameplates were installed on the scoops before leaving Fram.