Silver or Gold pentagram?
Reason they were on the right front fender was the marketing department wanted them there since that was curb side. The gold tone made em "pop" a bit and was to draw the average person's attention to the car. Even if they werent car people they would recognize the pentastar logo as a chrysler product.
Marketing wanted them on both fenders, the bean counters said no to having them on at all. Too much cost to do this to every car made, the bean counters and marketing came to an agreement and settled on the most often visible side. Curb side.
As cool as it is today, The pentastar was not there to denote extended warranty. That was not even in the dealer vernacular back then. They were not polished silver or chrome either. The originals from late 1963-1965 were chromed diecast with a gold tone finish and black painted accents. Around some time in 1966 they switched to black plastic with a built in mounting clip, and a gold anodized stamped aluminum insert glued in to cheapen the manufacturing cost and remained made that way thru 1972. But for all regular intents and purposes, they were put there simply for marketing purposes from 1964-1972
The classic industries ones as well as the other repops I have found are all the 66-72 ones.