We're learning the 74's here that have round ball style shifter handles instead of T-handles, too many than to be a gear head swap to the old style shifter, really starting to look that way. Tav, I vaguely recall reading in a Mopar mag how the earliest of shifter plates said Shift Gate, then again I may be mistaken, since your car is 'one' of the first cars off the line with an Aug build date, this still may indeed be a fact. Hold onto it none the less and suspect it is original to your car until more comes in.