Been out of the Mopar game for a little while. Bought a 1972 Charger with two Fender Tags. I was able to decode most of it, but some are not real clear on the tag. Looks like an original Red 440 car. However, the 2nd fender tag just has a backwards "R" and "H" on it. Trying to figure out what they means and what the axle ratio/code is. Anything else that people can point out will be appreciated. I attached photos of the decode I was able to do.

Also, this car came with the bulge hood, door hash indents and the RT style taillights. So, what did they call this model? An RT? A "Rally"? Thanks for your help.