School me on 70 Duster 4 speed shifter handle please

My car, 70 Duster is the red/white interior one. Of course the shifter isn't stock, but it was cool when installed back in the early 80's. And stupid me I didn't keep the stocker. Now I'm searching for a stock shifter handle and find a few on ebay that specifically say 71 or newer. My quick search indicates I need the one like in the black car.

The above said, what's the difference between a 70 and 71 shifter?

I did stumble across the stamped factory number for the proper handle a while back, but didn't hit save and of course now can't find it. If anyone has that info (1970 4 speed bucket seat shifter number) I'd be grateful.

Thanks, Ron