My RHD Barracuda

Very cool Barracuda John! There's nothing like taking a car that you really love and having the additional twist of it being an export car with RHD. I have always wondered about the tag to the right of the fender tag. I have one on my '71 'Cuda (which was a military purchase). I am wondering if these found there way onto special order cars (ie. exports, military, etc.). Anyone know?