A-body (?) Gas Cap ID?

I grabbed this gas cap off a '71 Swepty, but it wasn't original to the truck and I suspect it's A-body, considering the small outside diameter. Any idea if it is from and A-body?







"0144" stamped on handle backing piece:

id say later model (73) darts and dusters, because of the longer hooking flange on the back side. I know 70-72 used just the 2 shorter flanges.