Take a lesson from a real "expert". Here is how a person
without a skewed agenda and a real knowledge about the scenario would have answered the OP's questions.

Hi AAR#2. The first thing you need to understand is that there was in fact a change/transition between the 2 decals to comply with the March 10Th emissions mandate that prompted changes for many automotive decals. Every automobile manufacturer experienced this transition and it was not specific to just Chrysler. Any vehicle manufactured around the build date of your car could have came with one of the 2 Decals that were available during this transition period. The 2931181 was mainly used prior to March 10, 1970 and the 2962995 was used after March 10, 1970. Keep in mind that there could have been anomalies for vehicles built close to the transition phase of the March 10Th date. This was true not only for the AAR Cuda but all E Body vehicles regardless of if they were a 225, 318, 340, 383, 440 or 426 Engine. There is no definitive way to know exactly what came on your specific car unless you had the original. Since either style could have come on your vehicle, you can use the March 10Th date as a guideline or reference other vehicles that were manufactured around the same time line. You should be safe either way due to the fact that your vehicle was built right around the time of the decal change.